TIP: If you’re going to buy several hats for your smurfs, do so all at once instead of going back and forth between the smurfs and this menu. Everything you buy will be saved in the inventory menu
To access the inventory menu, tap on the hammer in the bottom right corner of your village and you will come to the above menu. See the spool next to the camera icon at the top? Tap on the spool . . .
Your village will now look like it’s in the Move Roads Only Mode. You can place hats by tapping any non-working smurf (i.e. any smurf not busy farming or gardening). The inventory menu will appear. You can place any hat that you have purchased. Once a smurf has a hat on, you can also tap on them (again, if they aren’t working) and remove their hat.
You can see several Smurfs with hats from Tailor in the above pic!