So i want to design basically a cheap bottle that contains 2 separate spaces, 1 for water/milk and the other for protein powder or any supplement. and have it tight closed so that when i sell them it will be sold containing the protien powder and water. the trick is that i need some sort of a way that when they open the bottle of put a straw in it ; the space where it has the powder falls into the water or milk and so its easy to shake, drink then throw the bottle. so pretty much a daily bottle to use everyday so that athlete do not need to buy shakes and do the shakes themselves. so controled bottle with pressure or a plastic part that rotates as soon as you open the bottle so it mixes both parts together? shape of the bottle doesnt matter much - i need to know if it works.
12 freelancere byder i gennemsnit $27 på dette job
Instead you could make it so the lid contains the protein powder so when the bottle top twists it could have something that releases the stuff from lid into the bottle.