I always kinda wanted an EasyBakeOven (or QueasyBakeOven to get around the annoying gender stereotypes)
Also had the Baskin' Robbins Ice Cream maker but my stupid mother wouldnt let me use it for some reason. Like she made it seem like she needed to be involved for me to use it and she wouldnt make herself available for that -> defacto unusable by fiat
I always wanted the die-cast metal Transformers toys from the 80s. My god parents' son had a bunch and they were the fucking shit. Especially Megatron and Soundwave.
I see multiple people saying they wanted an EZ Bake Oven: It was great, but it was kind of a one and done for me since where we lived they sold more of the oven than the recipe kits to use with it. Once the stuff that came with it was cooked, it basically never got used except to maybe melt GI Joes for "battle damage."