You should try this and youll enjoy making this for sure.

Fold the foam in half crosswise, then find the midpoint on each side, and mark them.

*Thanks toSewVeryEasyvia YouTube for all images used here.

How to Sew a DIY Washable Rainbow Rug

Image credit: SewVeryEasy via YouTube

How to Sew a DIY Washable Rainbow Rug

Easy to Sew DIY Washable Rainbow Rug

Easy DIY Washable Rainbow Rug Sewing Tutorial