Has any one tried...

Whey protein Crisps? Are they like rice krispies? I would like to try and duplicate the taste and texture of my favorite protein bar and make some homemade ones.

I have not had that brand, but I have tried and do like Kay's Naturals Protein O's.  They have a consistency similar to Apple Jacks and have different flavors.  They would be good in a bar like you mentioned.