I originally wanted to make a sort of ‘flame’ in the tubes but in playing with the fluorescent and silicone I stumbled on a nice floral aesthetic and made these stands to light them. These are lit from the top with one RGB LED and from the bottom with one UV LED.

The ‘stems’ are created by cooling the silicone and injecting warm gelatin\highlighter fluid with 16-18g dispensing needles. The cold silicone makes the gel set up quickly and gives the stems a bit of a texture. The ‘dirt\sand’ is coffee\grits. I thought I needed to leave a hole in the middle to allow the UV LED through so I used straws to leave a hole, but turns out it looks better with the UV on the tube edge so next time I won’t bother with the hole. The ‘flower’ tops didn’t turn out well this round- I let the silicone cure too much so I couldn’t get the ‘ribbons’ that I had in other tests but the next batch should turn out better.

Here are a the tests leading up to the first flower tubes. The bottom One of these tests was the inspiration for the tubes, it just started to look like a flower so I jammed some coffee into the bottom to look like dirt and I figured it looked good enough to try a few more.

And here are the first batch of intentional ‘flower’ tubes. Lots of mistakes but learned a lot and a few of them came out well enough to justify the LEDs.