Mystery Courgette? (Grafton SY4)

I have 5 mystery squash plants. 99% Sure they’re ’All green Bush’ courgettes, however they popped up over the garden and I don’t remember planting them! Potted them up to get them out of the borders and I already have 3 courgettes growing so don’t need anymore.

Let me know if you’d like a mystery plant, or 5!