To test push creatives for gambling offers without spending too much, start with a few headlines and images only. Use 2 to 3 different combinations and run them on a small budget. Focus on just one country and one device type first. Mobile usually gets cheaper traffic, so it's a good place to start. Choose run-of-network traffic instead of premium spots, and set a daily budget limit so you don't overspend. Track everything carefully with your tracker, and check which creatives get the best click-through rates. Pause the poor performers quickly and scale the ones that show signs of engagement. If your offer has a strong prelander, that can also help with conversions. Test slowly, gather data, and adjust your creatives as you go. Have you seen anything different work well or have ideas about other ways to reduce testing costs?