Yeah, my guess was similar - I thought it looked like the extractor part of a chain tool. Bit too wide to be an actual pin, isn't it?Could the small pin on the right be a spare chain link pin?
From left to right...
1. shims to adjust the reach on the levers
2. don't know
3. sleeve nut (holds the brake caliper on)
4. rubber bung to go over the hex bolt in the top cap
5. bar tape (don't know why this is useful)
6 looks like a shimano chain link pin
The thing that looks like bar tape looks like it has grit on it . The 3 on it could be 3 M and that's a grade of wet and dry sand paper I think . On the other hand if it is bar tape then its for putting at the rear of the hoods before you wrap the bars incase you miss a bit .
2 looks like its part of 1 .
Then its for the rear of the hoods incase you miss a bitIt's bar wrap, with a 3M adhesive backing strip - it's not grip tape.
Then its for the rear of the hoods incase you miss a bit
middle one looks like the threaded tube you put through the hole in your fork crown to screw the brake caliper on Pass on the rest.