all possible matchings of elements of two lists

[Sandy]

Hi all,
I basically want all possible matchings of elements from two lists,
Ex: [1,2] [a,b,c]

Required:
   [ [(1,a),(2,b)]
     [(1,b),(2,c)]
     [(1,c),(2,b)]
     [(1,b),(2,a)]
     [(1,c),(2,a)]
     [(1,a),(2,c)]
   ]

My thought is to get all possible permutations of two lists given and
select any combination and use zip to get the tuples. Repeat this for
all possible combinations.

Any other ideas?
Sandy