I second McMurdo. If you have to spend less than $100, you can't do much better than a Stillwater Standard. It's that, or make it yourself.

The difference in quality between the thrifty and the standard is immense, you will be impressed. Once you pull the Standard out of the box, I doubt you'll wear the thrifty kilt for much but yardwork and lounging around. In fact, I bet you'll consider disassembling it and using the material for a fly plaid if you get the same tartan in the Standard as your daughter got you in the "thrifty"..

Also, you'll know after owning a Standard for a few months, if kilt-wearing is really "for you", and if it is, then brace your checkbook for impending damage! I can't remember if you have an appropriate kilt belt and sporran, but if you don't, GET THEM. Stillwaters prices are extremely reasonable for reasonable quality stuff. I recommend their "upgraded" braided leather day sporran at, if I remember correctly...$35..