Name the Thingy! Win the boosted ego of the day!

Had the ST in the shop for some work. Good old Honda shop did a really sloppy job reassembling.
So while I'm cleaning up their work, I find this laying under my bike.
Don't know where it came from and can't find its "other side mate".
Any thoughts? A picture of where yours is installed would be a bonus.
Thanks everyone in advance.

Jim's got it. :yes:

And that's why I love this site!
I never looked under the tank cause I never lifted it.
I guess the Honda boys didn't know where it went so they thought tossing it under the seat was wise.
Thanks very much guys! Done deal!

There's double side tape on it so it sticks to the tank.

And THIS is where it goes.

ok, how many are there?

Two. One on each side of the tank.

There are 4 ... If you've 2 STs