Tri is a fun effect that you can carry on you at all times. This gimmick will allow you to change the colour and flavour of gum three times in one routine and be fully inspectable at the end.
The tutorial is over 30 minutes long and it will teach you everything you need to know to not only make this gimmick but use and maintain it. It is an excellent starting point to begin your gimmick-making journey.
Magic that looks this visual with every day items that you can carry every day is an absolute must for any magician.