Here are the “naked” wrappped up balls of Wool scraps with some strips added to some to make them more round.  They are about 2 ounces each.

The finished balls have a covering from other sweater scraps big enough to cut the oval-ish pieces.  The pattern called for 6 of the cover pieces, but I found that to be too much, so I used 5.
They weigh about 3 ounces.