Is this any good
Hähnel Wireless Timer Remote
Giga T Pro
http://www.eos-magazine.com/EOS Collection/shop/r195.html
Any reason you want it to be wireless? Guess it would go through batteries much quicker. With a wired remote you can use it without batteries as cable release. A search on ebay will bring up a lot of cheap intervalometers, I got a Yongnuo one for under £20.
Velcro was invented for just such situations (well, it wasn't but you know what I meanI just preferred not to have a wired remote hanging from a tripod.
Velcro was invented for just such situations (well, it wasn't but you know what I mean)