I started running out of ideas and gave up here:

pressure 🤜 bung 🤜 leak 🤜 air pump 🤜 vaccuum 🤜 wind 🤜 boulder 🤜 pry bar 🤜 manhole cover 🤜 hole 🤜 insulation 🤜 heat 🤜 plastic 🤜 erosion 🤜 dam 🤜 water 🤜 fire 🤜 boat 🤜 bridge 🤜 moat 🤜 boiling oil 🤜 ladder 🤜 wall 🤜 cavalry 🤜 bow 🤜 spear 🤜 pickaxe 🤜 rock

It’s gone full circle and there’s a 40k version:

link

My source is that I made it the fuck up!

DID I HEAR A ROCK AND STONE?