O.k., you asked for it..
Clean your handle bar and polish very smooth. Block any holes in the "far" end with a screw or whatever it takes.
Make a fitting like this - connects your air compressor to the handle hose... via a 1/4 turn ball valve. Connect the tubing roll to your fitting and clamp with a hose clamp.
Set your air pressure fairly low -say 30-50 psi, if not you'll be fighting it and you can blow out the hose (I did)... You'll need decent size compressor or a large tank. A small "pancake" compressor won't provide enough flow..
Place the valve on the floor so you can regulate the flow/pressure with your foot (the "third hand").
Hold the hose with your left hand and the handle with your right... crappy pic - need another hand! The air expands the hose and provides a low friction path for the hose to follow.
Work the foot valve in conjunction with your hands, and wiggle the tubing around the handle. To rest, just shut of the air. Turn it on too high and the hose will fly off. It can be a PITA. The handle shown is a TS400 - probably the worst case you can try. It never came with rubber, but I wanted it. Took me the best part of 30 minutes... and blisters. The 2 90 degrees bends are the problem..
When it's to where you want it, turn of the valve, and cut the hose with a razor knife at the exact location you want to to start/end. Turn back on the air and push of the excess.
Lubricant is a waste of time. The air blows it out immediately and all you need is the air anyhow.