Another great example of how tastes are shaped by history: JELL-O in the flavor of celery, seasoned tomato, mixed vegetable, and italian:
jello

A box of celery flavor:

jellocell

What do you do with it? Well, fill it with things like chopped celery, olives with pimento, and squares of… something:

 

3882147687_abb2c645d9_o

NEW (Jan. ’09)!  Jello with Tuna!  Jello with TUNA!  Did you hear me!  Jello with TUNAAAAAAA!

apday07011949022m32b1fd

(Ads found at here, here, and here.)

See also our post on aspic, meat-flavored gelatin foods.

Also, for fun, here’s a history of JELL-O that includes a brief description of how you would have to make it if you had to make it from scratch, which will leave you wondering how we ever bothered to invent and make gelatin to begin with.