What can I use 36" circular needles for?

Question

I accidentally bought the wrong sized needles and do not know what use I could make of them.

Answer 1

It depends on what size (diameter) the actual needles (the points you knit with) are.  36" is the length.  

If they're the right size for 4 ply yarn, an afghan is a good choice.  If they're a smaller diameter more suited to a lighter weight yarn, how about a pretty lacy shawl or stole?

http://www.knittingpatterncentral.com/di...

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Answer 2

An afghan

This poncho uses US size 8 circs http://www.bernat.com/pattern.php?PID=23...  I've actually been drooling over that poncho for a few years, but I never get around to making anything for myself.