[Farmall] IH Blue piece of plastic mystery

[ebony51 at frontiernet.net]

Folks,  I was going through some of my stuff (er, that is valuable tractor parts) and ran across about a dozen IH blue pieces of plastic about 1 1/2" and 2".  I think I got them at an auction at the Honey Grove, Texas IH dealer a several years ago.  I have no idea what they are for.  Anyone have any clues...or any use for them?  Do not want to toss some rarity or keep something that someone else needs.

Larry Hardesty
Kearney, NE