I get a lot of inspiration from doodles my sons make. When the youngest did this little monster doodle, I just knew it would make some cute toys. He told me what color they should be and named them.

The yellow monster, Tizzel, is free to view and use on my website/blog but is also included in this PDF of all 3 doodle monsters. https://haterumahandmade.com/doodle-monsters/

I usually use off-brand acrylic yarn in #4 medium worsted weight and a 3.0mm hook, but you can use whatever works for you. I also used a bit of craft felt to needle felt on pupils and mouths.

There are no special techniques or materials required to make these 3 monsters and even beginners should have no difficulty.