Cheap Dance Floor Decal
It's only a foot and a half wide, but if you're looking for something small this might be a good way to go! Also, this smaller decal will not cost much to ship!
Check out the shop, she's got larger options as well :)
also check out www.rightonthewalls.com
This site has TONS of options, although they cost a bit more.
The site also has a bunch of other decal ideas, amazing and fun!!