Gauge; Not important, have you ever seen an even dust bunny? LOL

You could use any yarn you want adjusting the size of your needles.

Yellow Bunny;1 strand worsted weight soft yarn & 1 strand of fun fur.

Blue & White;1 strand Lionbrand Jiffy or a bulky yarn of your choice.

Other Supplies;
Stuffing
Sew on wiggle eyes or yarn to make eyes with. My wiggle eyes are 10mm.