There's no doubt Google has a sense of humor — its excellent April Fools jokes are a testament to that. But there's a wealth of funnies that can found any time of the year too. Here we pull together a handy list of Google "Easter eggs" that you can uncover right now.

Bearing in mind we're working up another list covering surprises that can be found in Google Maps, Earth and Street View, have we missed any other tricks from those crazy Google funsters? Do share in the comments below.

1. Try a Different Version of the Google Homepage







Sure, Google's doodles make the famously sparse homepage a little more funky on certain days, but there are ways to jazz it up any day with some homepage tricks that will turn your search base into a pirate-, Klingon- or even Swedish Chef- themed online property.

Most of these work by entering an exact search term and then hitting the "I'm Feeling Lucky" button. There's a ton of these, some of which have been active for a while.

Google nods to open source software with Linux- and BSD devil-themed options that can be activated by typing "google linux" and "google bsd" then hitting the IFL button.

Those partial to a bit of grog meanwhile can get their Google homepage pirated by doing the same with "xx-pirate." Google will display in "hacker-speak" if you type in "google l33t." The Klingon version can be found with "xx-klingon," and if you want some bork with your Google, enter "xx-bork" to go all Muppet Show.

Even more options include pig latin ("xx-piglatin"), an Easter egg-themed page complete with bunny mini-game ("google easter egg"), and a dark gothic way to search ("google gothic"). Typing "elgoog" offers Google backwards, and there's an Elmer Fudd tribute at "ewmew fudd." Finally, it's not quite a whole homepage change, but entering "ascii art" will make the Google logo display in that style.

2. See Quirky Calculator Results







While the few funny answers Google offers via its Calculator app don't quite top the amusement to be had by typing 5318008 into your upside-down elementary school calculator, they are nonetheless another sign that the search giant doesn't take itself too seriously.

Case in point — searching for the number of horns on a unicorn makes the Calculator app spring into life with the answer "1," which is the same number it returns if you ask Google what the loneliest number is. Searching for "once in a blue moon" brings up "1.16699016 × 10-8 hertz."

And, always a classic, searching for "the answer to life, the universe, and everything" will trigger the Calculator display "42," which we all know is a reference to Douglas Adams's The Hitchhiker's Guide to the Galaxy.

3. View Search Results Funnies







A classic, third-party search gag is revealed by asking Google to "find chuck norris" and hitting the "I'm Feeling Lucky" button. The result, in bold red, reads "Google won't search for Chuck Norris because it knows you don't find Chuck Norris, he finds you." Suggestions for the next course of action include, "Run, before he finds you."

Although not falling into the Easter egg basket, some of the auto-suggestions that can be found via Google's search service are pretty funny, too.

4. Get Teddy Bears and Ninjas







Google programmers have messed around with code for both Picasa and Google Reader to yield some surprising results.

Taking Picasa first, when in the desktop software, hitting control-shift-y will make a teddy bear appear. Hitting the same combo again will give the first teddy a new buddy, and so on. It's since been revealed this was the childhood bear of photographer and photoblogger Noah Grey who worked with Google on the project.

Reader, meanwhile, gets an even more comprehensive Easter egg. With a reference to the old Konami video game cheat code — that, depending on the game, would give you 30 lives or other bonuses — hitting up, up, down, down, left, right, left, right, b, a, will make your RSS feed reader go into "ninja" mode.

As well as making some of the screen blue, all your feeds will read "30," and some of the icons will change (e.g. the like/unlike buttons, which turn into animated hearts). A little cartoon ninja will actually appear on the right hand side of your screen.

5. iGoogle Theme Surprises in the Wee Hours







iGoogle skins are practically chocolate-coated with so many Easter Eggs to be found within. A wide selection of the themes — which tart up your browser bar with pictures that change throughout the day — have a secret that's revealed at 3:14 AM PST every single day.

Selecting the "beach" theme will mean the Loch Ness Monster makes a mysterious appearance for one minute every day at that time. UFOs will hover over the skyline in "City Scape" and the Yokai, from Japanese folklore, show up in "Tea House".

Meanwhile, a cartoon monster makes a brief appearance in "Spring Scape," pi appears in the sky in "Sweet Dreams," and the Northern Lights put on a show in both "Winter Scape" and "Holiday Village." Still more include a snow tiger in "Aja Tiger," pumpkins in "Autumn," a galleon sailing along in "Hong Kong," and a spider in "JR."

It's almost certainly no coincidence that "3.14" are the first three digits of pi. It's the kind of witty play on numbers the Google staffers seem to love and, let's face it — so do we!

More Google resources from Mashable: