My 9yo daughter is becoming quite the TB fan....
She has been for awhile - she has a solar Side Effect, a plum Small Cafe Bag, and a Field Journal - but tonight she took my old Black/UV Synapse 19 and made it her school bag, and we have officially hit the big time. Just now, as we were all going to bed, I went into her room with my bin of TB Stuff (various organizer pouches and straps and stuff), and I set it down on her bed and said, "Okay, now we're going to trick out your bag!"
I showed her how the organizer pouches worked, and the key straps, and she was so excited. I got her all set up, she has a pouch for her milk money and a pouch for her pencils. She loved it!
She was debating whether to use a key strap or just clip them in on their own. Well, I left her to it and went back to my room, and my husband, coming to bed, passed by her open bedroom door. I heard her call him in to talk about something. And then my husband came into our room, and handed me a key strap, and said, "Beth says she doesn't need this piece because she's just going to use the regular clip, and that I should be sure to give this extra strap to you, because it's important Tom Bihn stuff, that I wouldn't understand." Hahahaha!