I found a couple "Pocket Posh" puzzle books at Costco. I bought a "hangman" one and flipped through the back to the answers, then put post-it flags on the ones the girls were more likely to understand (they have no idea who 'Justin Timberlake' is, but they know what 'strawberries' are).
Inside - well, it's easier to show than explain. You erase the silver circle under the letter you're guessing. If it's in the answer, erasing the silver will expose a number indicating that letter's position in the answer.
Thing 1 and 2 were working together and got really frustrated with their puzzle. They finally asked my help.
They were missing one letter. They had U_BRELLA. "We already erased the N, and it's not the right answer! We don't know what it is!!!"
Apparently I say um-bur-ell-a, and my kids are saying uN-brell-a. I never noticed.
I was telling the story to Gravity - who suggested they must have gotten the M in Unbrella mixed up with the N in "Valentimes," I think he's right.
Unrelated: I took the dog to the vet's to look into a sedative JUST IN CASE he gets unbearable on our trip. They weighed him in at 69.7 pounds. I had decided he'd stop growing at 80 pounds, but at 8 months old he's still gaining ten pounds a month. He's going to blow right by 100 and keep on going.