Bike spoke beads are cheap fun — cheap enough that you won't mind re-threading them every few weeks

Spoke beads are one of those cheap pleasures that kids absolutely love — they make a satisfying click-clack sound as the wheels turn and turn any bike into a custom creation. The catch is they work loose over time, especially if your kid rides hard, so expect to re-thread them every couple of weeks. At this price point, that’s a fair trade for the grin they produce.