Seal Chair

The quest becomes available once you have the Hectagon Necklace. You can complete the quest by giving the hectagon necklace, mushmom eraser, octopus eraser, real wraith eraser, real slime eraser, stump eraser, and lupin eraser. The quest gives out the seal cushions at a 50% chance of each color, so it's random.

To add to this, a real eraser has the long description, a fake one has 'a slime eraser' e.t.c., for the description.