My DD's from CRT two years ago was nice - a metal headband-style tiara with what looked like rhinestones. It looked like
this but without the pearls.
Funny thing, though, she got a nicer comb-style tiara from Senses at GF when we went there last spring for mani/pedis, and it was at no additional cost - it came included with the spa services (but we didn't know that until we got there - it was a nice surprise!). I actually like to borrow that one occasionally when we visit MK.