Spider x mojave? - and other ? about squares...

[I<3Dreamsicles]

Is there a mix of spider and mojave? Ive seen like one post on here about it but ive never seen any pictures - anywhere.

Also im still confused on how to do some punnet squares...
Say you have a pastel x normal.

Pastel is like P p and normal is n n (im not sure if the visual trait is capital or not but thats beside the point) Would a super pastel then be P P??? Or why do I hear stuff like a bumblebee still carries a normal gene?? I cant understandddddddddd. it would have S and P... or is it supposed to be a 4x2 square??? like P p S s for the bee, and n n for a normal...