I'm going to try to post a picture I drew in EQ... Hmmm.... I guess it's a work in progress. I saved it as a PDF & then found it, but it is only posting the drawing without a colour... so.... I'll keep trying. Okay got the colour going, but it's HUGE..... 4 pages....hmmm
Alright, there's a picture of one block & then a row with the same block alternating colourings. It would be an easy block to make & quite effective.