sometimes i go to walmart and buy wilson brand tennis racket tape. they come 3 rolls to a pack, and the package is about $2.60. the edges are adhesive and are already trimmed perfectly for wrapping.

these rolls are smaller than rolls of bar tape - about half the size - but it works REALLY well for stubby bullhorn bars and if you want to wrap only the drop portion of a bar - i.e., from bar-ends just up to the brake levers. it also works nicely on north road type bars instead of using grips which works sometimes depending upon the look you're trying to achieve.

it's not something i do all the time, but on bullhorns and that rare bike where just wrapping the drop portion of the bar looks good, it is a great solution. only comes in black, but it's actually very comfortable and grippy.

i've also wrapped a few bar-ends on mtbs with them as well. multi use!