In the distant past, a mound of soil was the only allowable way to do it.
A cone maybe? or even a shoe if your desperate
Grant Fox used to have a bucket of wet sand run onto the pitch every time he set up for a kick. He would then quickly "mould" the tee himself, kind of like building a sand castle. It would be different, anyway. Edit: and now that he's mentioned it, Reuben is right. I have seen kickers use a small training cone to tee up the ball.
3 tennis balls, a shoe or a cone but I would reccomend just buying a new one. Here's a link to loads of cool kicking tees for rugby. Hoped that helped
The plastic top off an aerosol can.
