Hi as Jan said learn how to knit and purl stitches and if you are going to do toys you will also need to know how to increase and decrease stitches and keep count of what row you are on (I use excercise books the pages don’t fall out)
Most kids love friendly dinosaurs (don’t let him watch Jurassic park lol) so I googled this
Just copy and paste that web address from https://
These patterns look small but you can increase the toy to approximately 4 times the size by doubling the size of the needles and using 2 strands of yarn like I did for all the dinosaurs I have done. My niece still rides her’s and she is now 8.
This one has safety eyes (plastic) but it is mine, for kids I sew eyes with yarn, they cannot swallow that accidentally. When you stuff it needs to be firm but not bulging out through the holes in between the stitches