Hiii! I have the weights of some of these blind box, sharing them in case I can help someone =)💞
151/152g - Twilight (Rising Star)
119g - Twilight (Full of Stars)
147.7g - Fluttershy (Sweet Feelings)
136/137g - Pinkie (Child of Nature)
115g - Rarity (Kind Heart)
143.4g - Applejack (Apple Ceremony)
Hi! Here's a full list of all estimate weights I found for this blindbox series. Just tried it with Flash and it worked =)
🐰Judy 252.5g
🦊Nick 234.5g
🦥Flash 245.6g
🐆Clawhauser 237.5
🦫Nibbles 250g
I can't say for sure, but I also found a blind box that weighs 218.5g, and I think it might be the secret one (Pawbert) since it weighs significantly less than the others registered but I can't really confirm
Hope you find this useful =)