Grafting of Watermelon & Papaya

Watermelon papaya

Folks,
Is this picture for real? Anyone with experience in grafting Papaya & Watermelon?
I would be very interested in learning this technique.
Thanks

Highly likely to be a doctored photo. Do you know the source of the photo?

https://images.app.goo.gl/VoNgF9FxqStKqDAY9

Someone sent it to me via whatsapp, and when I googled it, I found it here.

They’re completely different plant families, so I don’t think it’s possible