Silly String Put in Garbage Cart Aerosol Can The silly string container is an aerosol can. If there’s even a drop of liquid left, an aerosol can is still pressurized and can explode, so dispose of it as hazardous waste. Recycle Can When Empty Once an aerosol can is completely empty it may be recycled. Never recycle aerosol cans before they are completely empty as they pose a serious danger to recycling workers. The String is Garbage Wait until the silly string has dried before cleaning. It’s easier to remove once dry. Dispose of string in the garbage. Ways to Reduce Use Paper Decorations For decorations, use paper products. You can buy them or make your own. When you’re done, decorations can be saved for reuse or put in the recycling. Choose Bubbles Over Silly String Bubble wands with store-bought or homemade bubbles are a great eco-friendly alternative to silly string.