Steel - bright as fck
aluminum - a tad brighter than a still-sharp plastic one
plastic under 2mm - my kind of stuff
credit card -
legit tort - sounds great with nylons. they don't exist anymore (they shouldnt).
sharp picks - tons of attack, great for really expressive playing or shredding
worn-out picks - my kind of stuff. less edgy than new picks, plays like butter
blunt picks - warm like siopao, but thicker ones give it more beef
1 peso coin - scratchy tone for some coins. depending on technique either little or tons of attack. you tried it because of Billy Gibbons or Oji the Section Chief.