So, my nephew ((7)) has requested that I throw his birthday party because : " You have that bug thingy that can make cooler stuff than what Mommy buys"

When asked what he wanted he told me he wanted his invitations to be LIKE Bakugans, so basically he wants them to be folded into various shapes and then when you un-fold them the invite is inside, does that make sense?
Does anyone have anything like this, or any ideas? Pretty Please???