The old-time Fair Isle knitters (maybe the new-time ones, too) used very long 'pins'--double pointed needles. One was jammed into a special padded belt attachment and the another was used to knit off of it.
But yes, as long as you can hold all your stitches, you could use dpns for anything circular.
"Trust the pattern!"
Time flies like an arrow, but fruit flies like a banana.
Hop aboard while we follow the cloud-covered van of knitting harmony, man!! Woooo!! --Hedgehog
IngridKH on Ravelry