I have a 2005 jefferson buffalo nickel. The nickel looks normal other than the buffalo on the reverse side is multicolored. NEED MORE INFO PLEASE!!!
These are likely from Littleton Coin Co., which sold these fun sets with special nickels. You'd typically get 1 gold plated, 1 "painted", 1 hologram (like you have here), and 1 normal for like $10 or $15
My dad bought 1 and I now have, not because I wanted, but because no one wants the set. I have thought about spending it to create the situation you found in circulation.