Originally Posted by Tristan Lall

Alternatively, if you don't mind damaging the tire, drill holes through it, and fasten the top with through-bolts—maybe using some 1/2" flat socket-head cap screws, recessed into the tabletop and secured on the inside of the tire with nuts. That will at least retain the look—but if I had a souvenir like that, I wouldn't necessarily want to drill through it.