After making a few more speedruns just to get more character drawings, I have now collected 20 of the 21 Credits Stickman along with a number of equipment. Here's what I got (will update when I've found more)
Pickaxe:
the cheaterbug pickaxe that knocks down a giant flaming statue in 3 hits
two pretty pickaxe made of precious jewels
Keys:
the cheaterbug key that unlocks everything
a devilish key made of some yucky liquid
Swords:
the cheaterbug sword every goblink is afraid of
snake on a stick
a wired electric rapier
excavator without any moving part
'Kentucky Fried Frogs'
my tooth
Stcikman:
the cheaterbug armor without armor (or cheats)
a tree that moves
everyone in 'Credits' except Ed