Fill my bag of holding!

[Flynn]

A mummified severed head (animated or not)

A book that seriously discusses the Head of Vecna and its magical powers, as written by a True Believer

A cultist's robes, silver mask and obsidian dagger, and directions to a young noble's house (it's really a costume party thing, but most people would get the idea that maybe the noble was a secret cultist...)

A disclaimer note urging the purchaser of this bag of holding not to place it within, or place within it, a portable hole, and that the seller is not obligated in any form or fashion to recompense or other form of monetary or moral obligation should this disclaimer be violated.

Enjoy,
Flynn

 

[Thornir Alekeg]

A note that says "Deronn's Bag of Holding. If found, please return to [location]"

 

[Ilium]

A rock with a sword stuck in it. Completely non-magical.

 

[Slife]

A rock with a sword stuck in it. Completely non-magical.

Or a roc with a sword stuck into it. It's just a baby, so the party could raise it as a trained animal (after removing the weapon, of course).

 

[Timeboxer]

A very lifelike statue of a halfling.

Possibly a sufficiently clever party member will have a Stone to Flesh spell.

 

[Ed_Laprade]

A boat. There's gotta be a boat! (But with the size and weight limits its going to have to be a small one, or a kit job. No half ton cement boats for you!)

 

[Rhun]

A large iron skillet, a hunk of humanoid meat, butter, and other ingredients, along with a recipe..."One pound of salted mansflesh, cooked in garlic butter...etc."

 

[MichaelSomething]

A tangefoot bag
24 arrows
Books
Magic scrolls

This would be a great chance to place a plot hook of some type.

 

[Tinker Gnome]

A sheaf of parchment that is an essay on the nature of summoning.
Some fake fairy wings.
Somethig that may or may not be glue.
A carving knife
A ring that when worn makes the wearer's fingernails turn a hot pink.
Some fruity smelling concoction in a bottle.
A small glass rod
3 flasks that are sealed with wax that have a green gaseous substance in them.

 

[Shyloc]

Bottle of Air and 200 cats.