More knitting to use up some left over wool

I have been trying to get rid of some of the numerous left over balls of wool that I have stashed in boxes.  I am slowly diminishing the pile but there is still a way to go.  I think I will need to make a crocheted rug with the small bits of wool that I have. I would like to do one with hexagons rather than squares and I have seen some lovely examples on Pinterest.

Petals to Picots give instructions for joining the hexagons as you go.

Meet Me at Mikes shows you how to crochet a hexagon in ten minutes.

My difficulty would be that I would need to buy wool for the last round of the hexagon and the joining.  I guess I would be getting rid of scraps and I would only buy enough wool to make the rug.

In the meantime I have made a  hot water bottle cover.I also made a crocheted chevron rug for my son but will put that in another post after I have blocked the rug.