I made this pattern at a request from a big Henry fan. I’ve used US terminology for the crochet stitches. I used an 8 ply yarn and 3 mm hook but you can use whatever yarn you like with the recommended hook size for that yarn.
You will need:

Colour of your choice for Henry
Black
Small amount of white
Grey

3mm crochet hook
needle for sewing
Velcro
7mm black soft plant tie (for flexible vacuum hose, or alternatively you can stuff it lightly).
Stuffing

Finished size: 15cm x 10cm