Alright /3dpg/, I need advice

I recently bought some 3D printed models. The owner made the mistake of hollowing them out but he didn't put any drainage holes.

So now I have ten models that have liquid resin inside. It's been some months and two of them have already started leaking liquid resin in places.

I have a hand drill, but I also have a printer myself.
Could I save the models by manually drilling holes in all of them and draining them by hand, potentially making a mess? Or should I just throw them away and print them myself? I've already been refunded the money so either option is fine by me.

Pic unrelated