I found a free knitting pattern online you can download the PDF here...
The pattern says that you need fleece yarn, but because it's just a silly Christmas gift I didn't want to go to that expense, and I just used two strands of double knitting yarn. I knitted the 'adult medium slipper' working to the sizes in brackets and my slipper has turned out to be 22cm in length, but as the pattern says the slipper does stretch. I have size 7 feet and they fit me fine.
Another alteration I made was to the spots, instead of sewing some spots on my ladybirds, I knitted them some.
Using size UK 8 kneedles and single strand of black double knitting wool cast on 12 st and knit a row.
Row 2: K2 tog to end then cut the yarn and thread it through the remaining stitches. sew the knitted row ends together so that it makes a circle. I made 5 spots for each slipper.
I also made the ladybird some eyes. I thought that plastic eyes wouldn't be very comfortable on your feet, and besides I wanted to keep the cost to a minimum and I have lots of oddments of knitting wool.
With size UK 8 Knitting needles and white double knitting yarn cast on 20 stitches and knit 1 row.
Row 2: P2 Tog to end then cut the yarn and thread it through the remaining stitches. sew the knitted row ends together so that it makes a circle.
Pupils
With size UK 8 Knitting needles and black double knitting yarn cast on 12 stitches.
Row 2: K2 Tog to end then cut the yarn and thread it through the remaining stitches. sew the knitted row ends together so that it makes a circle. Sew the pupil in place on top of the white of eye.
To make antennae I cast on 16 stitches, and knitted 1 row quite tightly and then cast off. The knitted strip has a natural curve to it. Go with that curve and toll the one end of the antennae to make a small ball on the end. Tack into place and then sew the other end of the antennae on to the slipper.
