Playful and Quirky:
* The Graduate Gummy (Classic, simple, and alludes to the film)
* Benjamin's Bites (References his character's name, could be a chewy treat)
* Mrs. Robinson's Rum Raisin (A bit scandalous, but memorable)
* Plastic Spoon Pops (A nod to the iconic scene, maybe a fruity lollipop)
More Sophisticated:
* The Hoffman's Harvest (If it's a mix of candies, upscale feel)
* The Morning After (Dark chocolate or coffee-flavored, referencing the film's themes)
* The Graduate's Choice (Elegant, could be a selection box of various candies)
Ultimately, the best candy name depends on the type of candy and the desired vibe you're going for!