The flying disc toy is unlocked at tier 35. If you throw it at the right angle it will come back towards you. To complete this Season 9 Week 3 Challenge throw it at a steep angle and walk a few steps forward to catch it.
Fortbyte #6 | Yay! Emote at an ice cream shop in the desert (Season 9 Fortnite)
Fortbyte #7 | Use CUDDLE UP Emoticon inside a Rocky Umbrella Location (Season 9 Fortnite)
Fortbyte #8 | Found within Junk Junction (Fortnite Season 9 Fortbyte Locations)