Bonsour Randy,
Welcome, to the club and the silverstriking hobby.
There is a yellow cap, from the Plaza.(a 2 strikes for 1 strike ). However, you might as well as forget about getting this 1 CHEAP. They was very limited.
There was also a pink(not a CHEAP 1 eather, but; a lot cheaper the a yellow cap) cap from the Slots A Fun.
There was several blue caps. From several different casino's. These are more common. But, still are usually a little higher priced than the common clear caps.
As for color caps(cases). I questioned the 2 IGT men that IGT sent. To the Silverstrike Form, at the recent convention. About how many color caps IGT was planning to come out with.
They said that there was going to be only 3 colors of silverstrike cases in the future. Clear for normal silverstrikes, RED for special $10 value silverstrikes, ORANGE for special $40 value silverstriles.
The $40 and $200 silverstrikes they said. Are susposed to be out, by the end of this year.
I hope this helps to answer your question.
Danny