Here are a few ideas.
1. ungulate
2. Unseen Gold Money
3. Ultimate Gold Club
4. Ultra Gold
5. Uncut--describe a bull pretty good..

6. Unequaled
7. Unrolled Gold Money
8. Upsurge
9. Red's Upscale Money Club....sounds kinda vegas don't it...

10. Usury---High intrest often illegal loan..like made by a loan shark...or "Money Man".. (clapping)
11. Upshot
12. Unwound Wild Man...good name for a "crazy" Maine bull.....just kidding I read you whisper to them babies.. ;D
13. Uriah--hebrew meaning masculine.."God is light"..also biblical name for bethsheba's husband david had killed.
14. upsilon--12th letter of greek alphabet
15. Uranus---pretty much says it all.
Hey keep it clean.....it is the greek god that is the father of the titans and of course the 7th planet.
Hey Good luck hope these generate some ideas or maybe you will actually use one of them. ;D
dh