Patent ID: 7287817

Claim:
A device comprising: a top and a bottom, a main body, comprising a first front-or-back surface, a second front-or-back surface, a top surface, and a bottom surface, a pair of appendages extending from said main body so as to be generally opposed to each other, said pair of appendages comprising a first appendage and a second appendage, wherein— said first appendage comprises a first inner wall and said second appendage comprises a second inner wall effectively opposed to said first inner wall, said first inner wall and said second inner wall in combination provide a general definition of a partially circumscribed space, said inner walls are at a space width from each other, between said pair of appendages said body comprises a top wall, each of said pair of appendages comprises an appendage top proximate said top wall and an appendage bottom distal therefrom, and at least a formed step structure of the second appendage, generally adjacent said second inner wall and between said pair of appendages, wherein said at least a step structure comprises a step tread effectively facing away from said top wall and a step wall effectively opposed to said first inner wall, wherein said device comprises a plurality of receiving structures, said plurality of receiving structures comprising a first receiving structure comprising said first inner wall, said second inner wall, said step tread, and a first receiving reference width, and a second receiving structure comprising said first inner wall, said step wall, said top wall, and a second receiving reference width, said first receiving reference width being larger than said second receiving reference width, and wherein said receiving structures are adapted, as to each other, for stable complementary receipt of objects of a plurality of objects comprising different widths.