Simple...yer local hardware store.
There's a type of flat-link ornamental brass chain that's sold, the links are about 1/2" long, mayhaps 1/4" wide...you'll know it when ya see it.
You buy a whole crapload of it, cause it wears out, so have plenty handy.
Wrap about 3-4 feet of it around each wheel, tire, rim and all, and secure it with S-hooks.
It's soft brass so it don't scratch up the tires or nothin, might scratch up the paint on the rims a bit, but that's the price ya pay.
They'll last about two days if yer a throttle gorilla like me (ungh, fasta, fasta!) about four if yer more rational.
As fer traction, they'll handle ice, uphill, on a pretty fair incline, so no worries.