These are a fast, easy knit - it took me about 45 minutes to do each of them at a slow, TV-watching pace. They’re a great way to use up scrap yarn and make fast holiday stocking stuffers. String them together on plain yarn, iCord, ribbon, etc., or leave them as individual bulbs for infant toys (DO NOT give strung bulbs to a small child as they would be a significant strangulation hazard!). Fill one with catnip for a fast holiday feline treat. You could also put small bells or squeakers in, if you desired.