The Hashtag block quilt is pretty easy, except for when you get to the center block. You have to remember to sew only HALF way through the small, center block. Continue following the instructions, but when you get to the last piece to add into the full block, look at the page to see which part of it to sew first. The green and white is what was done first. The Mardi Gras one is my second block. I figured Mardi Gras deserves a hashtag!
Below is the center block to sew only half way through to the first piece.
When adding the last piece, sew the bottom to the top, before doing the center sewing. When doing the center sewing, careful because half of the block was already sewed in.