Here's a ready-to-use mini crossword for kids. Adjust difficulty by giving first letters or using a word bank.
1 C A T 2 D O G 3 S U N 4 H A T 5 B O O K 6 B A L L 7 T R E E 8 F I S H 9 C A K E
Bonus Riddle Clue: "What do you call a group of lions?" (5) – PRIDE.