I've once or twice  got a pair  of well darned  and reholed holed long woollen wellie socks before now and cut the foot off  , carefully picked back till I can get a full run through without breaks , over stitched it all with wool and then sewn the finger and thumb holes in .
My lass called them my " tramps gloves" but as they were well up past my forearms I wasn't bothered .
 I never got on with the partial finger glove for some strange reason , suppose it was that the finger bit always got pushed  back into the joint and as my hand curled round handles it made lifting things a bit difficult.