Whistle Bulk with Lanyard: 200 pieces colorful whistle with a 80cm long lanyard untied,which you could hang the whistle any where you like. Lanyard material: nylon. Loud Crisp Sound Whistle: It’s can be a good noisemakers in party favor bags, such as Easter baskets and christmas socking, and use them as rewards or trunk or treat giveaways as a sugar alternative.