These ornaments comes sized to fit both the 8x12 and 12x12 mats but can be made larger or smaller to fit your needs. You can use the pieces together or separately to make different sizes of ornaments! These would even be cute to hang on gift bags and wrapped packages! You can find a full tutorial and additional images on my blog: http://jamielanedesigns.blogspot.com/2015/11/3d-layered-snowflakes.html