You could always just stitch his arsehole onto a horse's arsehole,
like some kind of reverse human/horse centipede.
(The Porcupine From Purgatory katsu revival trust, Sun 28 Jul 2024, 9:26, archived)

Ass to Ass

( Cheers Cheers, Sun 28 Jul 2024, 9:41, archived)

Fun to funky

(President of the lighthouse Organised the Trumpton riots, Sun 28 Jul 2024, 9:48, archived)

Not nice

(President of the lighthouse Organised the Trumpton riots, Sun 28 Jul 2024, 9:48, archived)