A pompom is sometimes called a bobble, but bobbles are generally a bit smaller than a pompom.
Digital source of illustration (retrieved 21 January 2017).
WV
The basic structure of a pompom (also known as pompon, from French pompon) is made by winding a length of thread around a card template, removing the looped threads from the card, and then binding them tightly around the middle. The looped ends on both sides are subsequently cut through and then manipulated into the desired shape.
A pompom is sometimes called a bobble, but bobbles are generally a bit smaller than a pompom.
Digital source of illustration (retrieved 21 January 2017).
WV