Delicious Envelopes:

 One of the best DIY cards for your boyfriend. It is both delicious and cute.
Steps...
1. Grab 9 blank pages or construction papers. Fold them in half, paste them and cut them so they have the shape of an envelope.
2. Buy 9 candies (choose the ones your boyfriend loves the most) and put them in the envelopes.
3. Decorate your envelopes.