What to do with my spare Peltier

[LRTom]

Quite simply, I've got a spare peltier sitting around, what's the best thing to do with it?
Thinking CPU/GPU cooling? Some way of using it to cool the pipes on my A8n32?

Cheers

 

[LRTom]

not sure what size pelt. Physically about the size of a cpu.

Has anyone tried using a pelt to cool the ambient case temp by bolting on heatsinks? Any luck?