Mexico used to have an exclusive food related stamp set; it was retrieved since the concept wasn't really mexican.
I would kindly like to request a replacement for the set, but no with food, rather with stamps about a famous card game here that was adapted through the years: la loteria mexicana or chalupa.
Here I let the wiki page for the game:
Spanish wiki
English wiki
I think a nice 6 set would be nice, the deck of the game has 54 cards. I personally would recommend the following ones (all of them are known but the ones I suggest are very popular), I put the number of the card so you guys can relate them to the images:
El diablito/the devil (2):
La sirena/the mermaid (6)
La muerte/the death (14)
La chalupa/the barge (48)
El mundo/the world (37)
El valiente/the brave (12)
Honorable mentions that are very recognizable to and can be used:
El nopal/the cactus (39)
El corazón/the heart (27)
La rosa/the rose (41)
Putting "the" in english is important, it makes emphasis just like in spanish.