I myself have tried two methods
First was to drill into the hull and make my own peg with plastic rod, however not tight so used blutac in the corners.
Second was to glue hull to the perspex with glue and blutac perspex into the corners of base. However this method be careful picking up the base as it can come apart.

Both work ok, not sure yet which I prefer. Would like to peg all hulls but not all the hulls are big enough to have a hole drilled i to for peg fitting.