DIY Cocktail Smoker on a boat

I got curious after seeing some cocktail smokers show up in my social media feed. Unfortunately most were priced between $50-$100. So I thought I could DIY one for much less. 8 Pack Acacia Wood Coasters https://amzn.to/4auDSpU Small Funnels Stainless Steel https://amzn.to/48jfx4X 5 PCS Premium Double Screen Filter for Cocktail Smoker https://amzn.to/4aCK2UT