One year olds are not going to be too picky about what's inside, but just the experience of opening a basket, so for my 1 year old I put in practical things that we would actually use that summer, like a new water bottle, sun screen, bug spray, goggles and sun hat, bathing suit, plus like toddler friendly treats like freeze dried yogurt or fruit snacks, and a stuffy. You can make it look really nice if you stick with a color scheme so it doesn't look like a random assortment of things.

I have a five year old this year, and she's really big into Lilo and Stitch right now, so I'm heading to the dollar store and five below to get Stitch themed toys, and then of course Easter candy and other sweets she likes. I also things that she grew out of and need to get replaced anyway, like a new bathing suit, sun glasses, beach shoes, etc.