Incense come in sticks, cones, and the charcoal briquettes. Candles also come in various size tapers, pillar, and even tea light size dimension. But do I seriously want to get different containers to accommodate them?
The tips is easy; A single container, preferable wide and flat, filled with sand, salt, or dirt, works wonderfully as a holder for all incense and candles, and even other things.
This is also easy to clean by scooping or replacing the sand, salt, or dirt. I use white sand, but you can find various Sand in Vivid Colors at the craft store, or find the Sand for Aquarium at pet stores (you can even find black sand). Hardware stores also carry sand for gardens or walkways.
Other containers include bowls, pots, or plates. This can also be used indoors or outdoors, and changed with the seasons. Use dirt for spring, sand for summer, dirt/soil for Autumn , and even snow for winter (outdoor only). Use your imagination!