1. Station Guard at 15,000 studs can be found In the first Defense Against the Dark Arts classroom use Wingardium Leviosa on the 4 torches on the walls to cause this token to appear.
2. Vernon Dursley at 12,500 studs can be found in clock tower top left near snake to smash up.
3. Petunia Dursley at 12,500 studs and can be found in Hadgid’s garden once you activate the Time-Turner and use a dig character to find the token.
4. Milkman at 15,000 studs can be found in the Clock. tier once you activate the Time-Turner the token is in plain sight to collect.
Load up the Forbidden Forest and go upto the left side where the wasp/bee 🐝 nest is and hit the bee with
let another bee spawn and hit once again with
rinse and repeat another 8 more times.
Pop achievement unlocked.