Micro Whistle Stick Keychain

A Buddy of mine recently said he prints TONNES of whistles!! I don't live in an area where you might need access to a safety whistle, but I am a school teacher. This Micro Whistle Stick is designed to go onto a keychain and be invisible until used - I hurt my own ears blowing this! The single colour whistle is 2.75g of material - designed to reduce weight and increase chaos! I printed in glow in the dark too for those that love some glowing accessories on their keychains too! I would love any feedback as this is my first whistle model! Any feedback on it would be lovely - Also did I mention - it prints in 6min 30secs????