this hat seems pretty cute https://www.amazon.com/Disney-Mens-Baseball-Gray-OneSize/dp/B073YYZBW3/ref=sr_1_22?dchild=1&keywords=lilo+and+stitch&qid=1620819872&sr=8-22
also if youre able to check out random episodes, the lilo and stich cross overs were always my favourite as a child and im sure yours will enjoy them too. The one with kim possible and the American dragon are the best imo.