Disappearing Hour Glass

 There are some great tutorials for this block on the web already.
I'm not trying to compete - just to put this where I can always find it after I spent a few minutes wondering how to replicate a block that I'd made some time ago (and wrongly thinking that it started with a pinwheel block!).

 Take two 10" squares of fabric.  Lay them right sides together and sew all around them.

Cut them across both diagonals (and I'd recommend carefully pressing them open at this stage, although I rarely follow my own advice!).

 Lay them out in this pattern - which I think is called 'hour glass' although some people might use that name just for the centre four triangles in this arrangement.

Tricky business, getting block names right!

Sew together and press again.

 Your block will probably be 12 2/3" square.

Slice into thirds in each direction (so for this size, 4 1/4" per slice).

 Rotate the corner and centre blocks to get to this pattern (I like the little butterflies in it, which will remind me that this is the week when my DD2's butterflies hatched).

 Make enough that you can make a quilt!

I didn't have enough blue with me to make the nine blocks that I wanted to, so make the rest with a blue backed floral, which wasn't quite as close tonally as I'd hoped!

I decided that this was the better of the two layouts that I tried.  Still not perfect for showing off the  pattern that it made when the blocks come together, but enough to get the idea of it!

I might be putting this back on my list of things to make more / make again.  I think that it would work really well as a scrappy quilt and I'm pretty sure that I already have some 10" squares cut and in my scrap drawers.

This will make a reasonable baby quilt, though.  about 32" finished size.

Layering, basting and quilting next on my list of things to do!