I buy my warning labels off of amazon. Candle Warning Stickers, 300 Pcs Candle Jar Container Labels, Waterproof Strong Wax Melting Safety Stickers Great for Container Candles, Candle Jars, 1.5" Round Black Label, Yellow and White Text. https://www.amazon.com/dp/B083SQ15CQ/ref=cm_sw_r_cp_api_i_xcNIEbY4FESCK
320 for $8
Also, I create my own candle labels with a cricut and sticker paper. The machine is expensive, but your pocket will be happier in the long run. I’d be happy to answer any questions about candles/labels any time!