A "chandelier" or mobile ceiling hanging
The ultimate tealight candle holder (a use for old spoons too...)
Candle hanging
Retro mobile
Anything can be used as a planter - just add pots!
Bike table
Wall art / photo holder
Garden wall art / planter
A wheel fence
Make a clock...
And finally, some more light ideas - this is achievable for me because of the use of fairy lights!