I think you can buy sticky backed velcro dots (about the size of a 10 c piece) which would enable you to stick one side on the waistband and the other on the tail.

Good luck.

a bit lilke this... (also in black)

http://www.ebay.com.au/itm/50-Pairs-...item256d4377e7

I think I've seen some in $2 shops in Australia.

I've used the stick on dots when making costumes, but they don't tend to stay on. If you pull the tail the whole lot will come off. I prefer to put a stitch or two in, but it is tough sewing the side with the hooks.