And so today I returned to Castle Street to collect the freshly serviced bicycle. Jake and Elwood live at the far end (less posh) I spotted this at the close-to-town end (very posh).
I believe it to be a topiary interpretation of two teddies riding on a unicorn. The front teddy is holding on tight and his pillion passenger is giving the arm signal for a right turn. I've included an extra so you can see both sides. Do let me know if you have a different interpretation