i gave my daddy the marsan watchcap and it was a lil small. i was a lil disappointed, but now i know what needs to b done. somebody is going to get that hat. daddy will get a new one and it will fit. i need to get my hands on invisible elastic thread. i'd like to knit some more tams and i think the thread will keep the shape @ the mouth of the crown. where can i find this? joann's?