These minions are always frolicking about and playing with one another.
Perhaps due to their physical makeup, objects littering the ground tend to get stuck to them as they tumble and play. The witch always plucks the rubbish off of them afterward, but the minions hardly notice a thing. When they see the witch puzzling over her next castle, they trot over to help her out. However, since they can’t satisfy the witch with anything they make, they tend to get bored and wander off fairly quickly.
These Familiars are always playing amongst themselves. A quirk of theirs is that as they roll around, all of the things on the ground stick to their bodies. As they do this their Witch collects the debris without them noticing. When their Witch is coming up with a plan for her next castle, they come to her aid. But soon they realize that it is impossible to satisfy her, no matter how hard they try, so they get bored and stray away.