The one I like the most I call my RICO Act product.
We have been making a particular product line for over 20 years, long before I started. It has the potential of causing great damage, costing our customers thousands of dollars. It caused some of our customers to kick that product out of their facility. Total sales of that product line are about $100MM. The amount of sales lost I think was about $5MM.
We developed a separate product to solve that problem and launched it 3 years ago. It has about a 90% GP and this year we are on track to $2MM in sales. We charge our customers to fix a problem we created.
God bless capitalism.