yes - ages ago I bought cheapy mccheap velcro ones from the £ shop to try and they were fab. Tried heated ones but they were too heavy and fell out.
make my not-quite-wavy hair into smooth bouncy 40s screen siren waves but my hair is fine and takes curl quite well, if yours is thick and poker straight will be harder
1.5" diam
you need loads though as you can't put too much hair round each one
takes ages to dry as well - if you put them in wet hair after the shower in the morning they will by dry by 3pm. Better to start with dry hair, damp each bit and spritz with Product ('firm hold gel styling spray' or sommat) then wind up.