Are you asking about containers to store powders? Just use any empty spice shaker bottles.
Heck, if you have some awesome superhot powders, get some spices (Italian, garlic, whatever) from the Dollar Store, put the spices in something else and use the shaker bottles for your prized chile powders. Be aware that some plastics may have a residual smell of the previous spice which may affect the chile powder. Other herbs aren't as strong and won't leave any residual in the jars.
New spice shaker bottles are available from places like Specialty Bottle, Freund, Container&Packaging....