Bandai's "Cook Joy" series of toys are so creative and enticing. I can see a kid getting many many days of fun out of them over time. They're not all candy-themed but here's one that is. It's a simple chocolate-making kit where you melt light and dark chocolate and pour it into adorable kawaii molds. I like how you can presumably buy more meltable chocolate on your own when you run out of what comes with the kit.