Homebrew found on internet
Wondrous Item
Legendary
This is Bob. Bob is a bag of holding. Bob is always in a bad mood and likes to cheer himself up by surprising whoever is using him with useless, angry animals. Bob is an asshole. Don't be like Bob.
MECHANICS
This bag functions as normal bag of holding. Bag is posessed by mischievous spirit. When reaching into the bag to retieve an item, roll 1d4.
On 1, instead of gravving the item you wanted, a random animal falls out. The animal behaves like an angry,, surprised animal would naturally behave.
Additionally, the bag will eject a random animal, at the worst possible time (GM's discresion). The animal automatically surprises whoever is carrying the bag and everyone within a 20 ft reach.
ROLL D12 FOR ANIMAL
1. Hippo
2. Giant Rat
3. Boar
4. Cow
5. Giant Frog
6. Furby
7. Slime
8. Black Bear
9. Elephant
10. Swarm of Wasps
11. Crocodile
12. Owlbear
Weight: 2lb