Between €12,000 and €15,000 are needed. I have quotes from suppliers who manufacture for third parties, and others who produce cases, both cardboard boxes with labels and glued-on envelopes, also with labels. They are demanding, they show no mercy; minimum orders in almost all cases are rarely lower than 500 to 1,000 units, which is at least €5,000. Of course, this doesn't include packaging, which, depending on the type, adds up considerably, as do the sticks. The investment in advertising and marketing must also be considered. Initially, you're not well-known and you have to use a lot of resources.
It's a good idea, but capital is necessary.