No problem. My first soldering pick was a sharpened bit of coat-
hanger wire. Worked great. (Probably wouldn’t use it on platinum, but
if you’re playing that game, get one of the tungsten ones.)
You can make a tungsten pick out of a TIG electrode for a couple of
bucks. Go to a welding supply, tell them you need a 1/8 TIG
electrode. Get one of the cerium loaded ones. (not thorium, and not
just pure tungsten. The first is ever so slightly radioactive, the
second is brittle.) Should cost a couple of bucks.
Get a wooden file handle, and drill out a hole slightly undersized
for the rod. Drive it in, (carefully: they’re still brittle) and then
sharpen the point with a grinder. Mine’s lasted me 20 odd years.