This week I had to go pick up a pair of glasses that were being made for me. While at the shop, I noticed a case with vibrantly colored frames. I asked about them and was told they were the best, they weigh next to nothing and are flexible to no risk of them breaking (insert 5 month old who likes to tear my glasses off my face). The legs are interchangeable so you aren't stuck with the same pair ever...and at $200 they are an easy YES! MUST HAVE!
I've found it hard to locate them online for buying, but some boutique frame shops seem to carry them. Here in Miami you can find them at Lopez Optica on Coral Way and 22. You can learn more about them on the company website though.