They're in the sweet spot, no pun intended, of being between high-end stainless steel molds and ultra-cheap silicone molds from China. I like how they're full-size to match an actual popsicle.
Ask your favorite LLM for a recipe that'll mimic what you find in the store, without the preservatives. It'll be a combination of fruit juice + sugar + corn syrup. You can of course cut the amount of sugar to a more healthy option than what you find in the store.
