Your best bet might be trying a female condom. Some men have said it is the next best thing to BB. I have used them with mixed results. They are a little more awkward in some respects, but when properly inserted, work very well.

Good luck

I don't know if this trick works as well for thick dicks, but it works for most others.  I put some extra lubricant on the guy before putting the condom on.  It allows more friction than no lube or the little bit that comes with the condom.

Also, look at sites/stores that specialize in lots of varieties of condoms.  There are different shapes of condoms besides the straight version.  A baggier "head area"  might be good for you.

A SMALL amount of lubricant on your penis before applying the condom will help the condom to slip a little, providing the additional friction that you need.  Be careful not to apply too much or the condom might slip off.

Also, try Magnum XL.  They'll be too long for you, but they are also made wider than the traditional Magnum.  They should accommodate for your additional thickness.  The added length may also help with the friction issue.

Keep in mind, that most men who have become accustomed to having sex without a condom will have difficulty with one.

Trojan magnum extra large works ok but those larger condoms really dont take into account a guys thickness ass much as the length. You wont stay rock hard.