Back when my group played 2nd ed AD&D, one of the many houserules we used from Dragon magazine was the Cantrip Proficiency from issue 221 The Little Wish, which let you cast 0th level spells in much the way that later editions of that game (and Pathfinder/Starfinder) did. This idea goes back further than that, I think it was originally in Unearthed Arcana for 1st ed, but that was before even my time.
Most of the 0th level effects got rolled into Prestidigitation, which was always sort of a 'catch all' spell for whatever the DM would let you get away with.
In order to put guard rails on that, and give the players ideas on what the spell could be used for, at some point in my 3rd/3.5 edition career as a DM, I created a list of various effects you could make with Prestidigitation and gave it to my group. Most of them were based off ones in the earlier edition, and some were based on research done by players in various games over the years.
For Starfinder, I've gone ahead and done the same thing with Token Spell. Basically, since 0th level spells are at will, I split Token Spell essentially into a bunch of smaller, like half spells, that can all be done as part of learning Token Spell.
I've put it in a google doc, here. If anyone wishes to use it (in whole or in part) feel free. If anyone has suggestions for updating it, or critiques, I'm all ears.
I got a lot of help with the formatting and a few rules issues from some people on the Starfinder Discord. I'd like to thank them, but don't know their handles on the forums. So if any of you guys want to chime in and claim credit, speak up. I really appreciate the help.