This guide is mean to help the many people in the comments of the workshop mods asking how to equip skins.
Equipping characters or modded characters
First: Subscribe to your desired skin in the Steam workshop (duh) (If you want to equip a vanilla skin like the captain then ignore this step)
Second: Go to settings in Haste and scroll to the bottom of the General section
Third: Ensure that the Fashionable Weeboh hub icon is enabled
Fourth: Hit start
Fifth: Find the Fashionable Weeboh. It is the shrew that is cosplaying lady Gaga, located in the area where the other characters like Captain and Haro are.
Sixth: Interact with the Fashionable Weeboh and equip your desired skin, your mods will be under the achievement/shop skins.
Seventh: Equip a skin (duh)
Hope this helps!