OSRS fun fact #🎅:

for some reason, there is a vial(?!) in the animation for pulling a Christmas Cracker. it's reusing an obscure animation from the Watchtower quest that you can only see by making incorrect version of the magic ogre potion

OSRS fun fact #18:

there are "crazy penguins" near the Iceberg agility course, experimenting with a few hare-brained schemes to try to fly. Some of these (hot air balloon and cannon) are only possible to see if you finish Enlightened Journey and Between a Rock before Cold War

OSRS fun fact #14:

there's a Varrock Museum wheelbarrow guy that always says hi to the guards on his way back to the Digsite. but what happens if you kill all the guards first??

OSRS fun fact #13:

you can superheat jogre bones for some reason. it gives 25 Cooking XP

OSRS fun fact #12:

if you try burying zogre bones in Jiggig, there's a small chance a skogre will rise from the grave and attack you

OSRS fun fact #9:

if a specific variable from the Forgettable Tale quest is set to 1, then the Drunken Dwarf in Keldagrim turns into a wandering kebab(??!)

it's unknown whether this is achievable through normal gameplay...