Will you or someone else have a fridge/freezer?
How about sticking them with a wood popsicle stick, dip in warm chocolate and freeze. The cake portion should get too hard and hopefully end up like a small cake on a stick. Depending on whether or not you guys enjoy a "night cap" before sleeping, drizzle the twinkies with some rum before dipping in chocolate. If you want to go alcohol-free, use rum flavoring.
My bad, you're looking for apps, not desserts.