"The April interlocking crochet square features a geometric quilt-like design. You will need two colors of worsted weight yarn (or weight of your choice, though of course different weights will result in different sized squares) and a size H crochet hook (or size appropriate for your yarn). The pattern comes with charts, written instructions, and a full video tutorial. The sample pictured was made with WeCrochet's Wool of the Andes Worsted yarn and measures 9". Another sample made with Paintbox Simply Aran measured 10"."

Single crochet stitch

Slip stitch crochet

Front post double crochet

When you get the base made, any decorative shape will be possible. You just make a form form a paper sheet and away you go..

In this tutorial made by Lilla Bjorn's Crochet World you will learn how to make a perfect surface crochet on a round coaster. Simply by adding a simple round decor, you will get totally different elegant coasters and a coaster pattern is also included.

Ocean wave crochet pattern

How to crochet intarsia

However, squares also have their place among flower afghan block ideas. Here is one that will certainly be a great addition to any project, or indeed it's main structural block.