Based on the category ranking on Amazon of the Carbage Can it looks like he sells ~250 a month which at $20 equates to $5k a month in sales. This could easily e

Based on the category ranking on Amazon of the Carbage Can it looks like he sells ~250 a month which at $20 equates to $5k a month in sales. This could easily equate to the $15k he claims in November/December. Total yearly sales could be around the $80k mark. Assuming he makes $8, 40% margin, on each unit then that's $32k of profit each year. Capital costs for manufacturing are around $20k. Assuming the capital costs are amortised over 3 years, that's $25k of income each year which isn't great but you can live off it. If you were designing a new product like this every year, then it could make a healthy business.