Glass ashtrays are most popular and are a classic option for smokers. They can be cleaned and maintained easily, especially crystal ones.
Other materials such as ceramic are also easy to clean. They are quite fragile, but they emit a more contemporary and casual look unlike crystal.
Silicone ashtrays are the newest trend amongst smokers since they are practically indestructible. And due to their recent popularity, the market is booming with various designs and colors. You can even find ones with features such as holes for your lighter or attached holders for your rolling papers or loose tobacco.