These are just two of the items available as part of the fast food giant's wedding party program, which launched in 2011 in the region to meet customer demand.

Nothing spells eternity like a McDonald's white balloon wedding gown or a crystal McDonald's house wedding gift for some couples tying the knot in Hong Kong.

Since then, McDonald's has hosted about a couple dozen wedding parties and expanded the service from three restaurants to 15, wrote McDonald's spokeswoman Jessica Lee in an email. The fast-food giant also hosts engagement, anniversary and bridal shower parties.

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"We started the program because many customers tell us that McDonald's is where they first started dating...McDonald's is where their love stories grew," Lee added. "This connection is exactly why they want to hold their wedding parties and even anniversary parties at McDonald's—to relive sweet beginnings and bring their romantic story full circle."

The company offers four separate wedding packages for the betrothed, topping out at HK$9,999 or about US $1,290. The bargain party option clocks in at about HK$2,888 or US$373.

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The deluxe version includes a 2-hour venue rental, McDonaldland character gifts for 50 guests, 50 invites, wedding gifts, a pair of McD's balloon wedding rings, bridal bouquet, apple pie cake display, Crystal McDonald's house, decorations, a MC and more.

Both are a steal compared to the average U.S. wedding, which stands just south of $30,000, according to a study from wedding website TheKnot.com.

Other festive decorations include a balloon wedding hat for the groom.

No word yet on whether McDonald's will expand the program outside Hong Kong. When asked about possible plans, Lee said "this is something unique to McDonald's Hong Kong at the moment."

—CNBC's Katie Little