Senate Insurance did a spoof of the Geico Commercials involving the Caveman. Dave Cooperman, the actor who survived the Traffic Jam slaughter in Deadlands only later to be brushed off when trying to warn others has landed him self two commercial spots, and one of themis funny as hell.

Spot 1 - http://senateinsurance.com/public/commer.aspx#a9
Spot 2 - http://senateinsurance.com/public/commer.aspx#a10