Clamshells question

Decided that this year I should really make an effort to protect some of the older stuff I have, particularly the carded stuff and I'm thinking of going with clamshell cases for them as an inexpensive but effective way of going about it.

I need to find clamshells for G1 minibots (Argentinean), G1 Predators, G1 Stormtroopers and Aquaspeeders, G1 Skyscorchers & Axelerators, G2 Gobots, G2 Cyberjets and G2 Combat heroes (the Euro versions which didn't come with clamshells).

If anyone has any ideas, or better yet, suggestions based on what they use for their own collections, I'd be very interested to hear them.

I've got some I'll PM you.