Makeweight

n.

1.

That which is thrown into a scale to make weight; something of little account added to supply a deficiency or fill a gap.

Noun	1.	makeweight - anything added to fill out a whole; "some of the items in the collection are mere makeweights" Synonyms: filler
	2.	makeweight - a weight added to the scale to reach a required weight

filler, object, physical object