Baskets:
Jarred salsa?? Sorry, but ewwwww. (maybe a little can of Herdez salsa verde or casera)
Mojo Criollo
Chipotles in adobo in the little cans
dried whole peppers (multiple brands in the little plastic pouches hanging at EVERY Mexican grocer) - pasillas, anchos, arbol, etc
dried ground peppers (same deal) - these will both run about 89c to 1.19.
The abuelita chocolate
Mexican brown sugar
Mexican Vanilla extract (will cost some $)
Few cans of tamarind nectar (jumex brand et al)
I wish there was some good jarred mole paste, but I haven't found any (yet) teloloapan is OK, and they make small containers of it for like 2.50ish. But there are other brands too - Dona Maria, Rogelio etc. Maybe each basket could have a different one?
Goya Sazon packets - adobo?
Achiote boxes?
Wander around a nice size jimenez - your possiblities for cheap but overflowing gift baskets are endless.
And don't forget a mortar and pestle.
We cannot be friends if you do not know the difference between Mayo and Miracle Whip.