I know you think you're being funny but what was exactly wrong with my advice in the other thread? I explained it was simply using the skin of the can as a shim (under the bar tape) and then wrapping the bar tape over it. All it was is slightly wider diameter for the brake lever clamp since it's clamping on top of the tape.

Initially I thought his brake lever clamp was too large for the bars and he just needed a wider diameter to clamp to.