I just posted a reply about what to use for logbooks but thought I'd share what I used for my kids and their logbooks as they can get quite expensive.

For kids, I found that the 3 x 5 wire bound cards from Wal-Mart were a good purchase at about $1. It allowed a spot for my kids to stamp on a blank area and then have the lined card to write about the stamp. (FYI - the neon colored cards have too much color and don't accept ink very well.) Some of the covers of these are really pretty. They're also quite small and easy for kids to use.

Cabin Clan