Print one tree for each student.
Cut and laminate each item. I backed my original set with construction paper {I'd use card stock today} and trimmed closely around the shapes. Make multiple sets for each student in your group.
After practicing a target skill, have each student roll a dice. Match up the number with an item and add it to your tree. Collect one of each item to win!
You can find a copy here for free in my TPT store!