Spin A Yarn for Ewe

I have been spinning and spinning for the LYS that is going to carry my yarns. She wants the skeins at about 100 yards so this sometimes leaves me with left over bits. I was thinking of making a "Magic" yarn skein and bring that too to see if she had any interest. Here are the yarns I was thinking of using. I would hope that it would be like a handspun Prism-type yarn. Any one have any experience with this? Comments on the colors. I thought I would use longer lengths of each color so you would get more than a row or two of each color in a repeat on lets say a scarf. I think this would look better, so off to tie and cut some yarn.