Smoke in a can? Any hardware store should have some. https://www.amazon.com/UTC-Security-SM200-Smoke-Canned/dp/B0041X4GRK/ref=sr_1_1_sspa?keywords=smoke+in+a+can&qid=1574879997&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUFQUkNFMU5QMjRKQ1ImZW5jcnlwdGVkSWQ9QTA1NTAzNTVKMjVQTk1BSkdWOE4mZW5jcnlwdGVkQWRJZD1BMDE5MzYyOTNDU1oxVlZROTdXNTgmd2lkZ2V0TmFtZT1zcF9hdGYmYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl