Key chain/holder from old seatbelt buckles...
Bicycle Gear Cog Coasters
For Bike Fans - Pendant "Rim Lamp". €390,00, via Etsy.
Handlebar Table, 1983, de Jasper Morrison
made out of bike spokes...I bet you could even get extra craft and use bikes tubes to line the bottom
Recycled Bike Chain Bowl. craft project? It's worth a shot!