Ukulele hats? A year or so ago I would have said no, but these days I'm somewhat follicly challenged and do tend to wear one outside. So, summer I have a couple of straw hats, panama style and one cowboy style, winter, anything woolley that covers the ears. Inside? Mainly not but, just yesterday, my trio were playing in a care home and we sported a sort of Victorian style smokers hat, a Turkish Fez and a Baker boy cap. Then we hit the Christmas carol section so on with the Santa hats, natch.