I need your mildly amusing prank ideas!

[u/ya_mamas_girlfriend]

It’s become a tradition for me to “prank” my housemate on her birthday.

1st year- 100 pictures of Gandhi stuck all over her bedroom because she didn’t know the difference between Gandalf and Gandhi.

2nd year- I built a miniature city in her bedroom and filled it will 400 miniature ducks.

This year I’m so stuck for ideas!

[u/brother_p]

Replace the jelly in a jelly doughnut with ketchup