The children a write their own targets which are displayed on this target board. The closer the children are to reaching their target the closer to bullseye their arrow moves. This gets refreshed half termly even if targets aren't met to keep targets relevant and SMART.
I love all of these ideas for a classroom. There are bracelets to keep track of groups, paint stirrers to separate books and just basically anything to help out in the classroom. As a plus, these hacks aren't even that expensive to make happen.