The first day our kids collected bugs we ended up with quite a few. We left them in jars with the lids on tight and poured a little bit of rubbing alcohol in with them. This is the following day after they were dead.
The kids keep bringing me bugs and we just keep collecting them. They are so excited about making the bug board. They can't wait until we put them on the board and label them. I must admit that I'm having a lot of fun, too (reminds me of being in Mrs. Burgess' 3rd grade class making a bug board). I'm looking to seeing the final product myself.