I have three:
The Park AWS1 4-5-6 mm allen Y-tool. Mine is so old and been used so much that I "dremeled" a thin slice off the 4mm to reestablish a sharp tip.
The Park PFP-4 floor pump refitted with a Hirame presta valve chuck. It's in nearly daily use for years
The "Wrench Force" (aka Feedback Sports) repair stand. Wrench Force was a Trek house brand and It was a super bargain years ago when Trek was closing them out and getting out of the tool business. Mine came with a crude but usable wheel alignment attachment, a carrying case and a handlebar/fork holder to keep the front wheel from flopping around when the bike is off the ground.