How to make foam at home?

How to make foam at home can be done for cleaning foam, soap foam, or simple craft foam using household ingredients like dish soap, baking soda, and vinegar, similar to DIY cleaning solution, though industrial foam like polyurethane requires chemicals not safe for home. For simple cleaning foam, mix dish soap with water and whisk to create bubbles, for bath foam, use liquid soap and water with hand mixer to create thick foam for fun. For craft foam for kids, mix 1 cup dish soap, 2 cups cornstarch, and water, whisk until foamy texture for sensory play, or use shaving cream and glue for fluffy slime foam. For more durable foam like polyurethane foam for cushions, making at home not recommended as it requires isocyanates and polyols that are hazardous and need professional handling, similar to needing HEPA filtration for safety. For soap foam for cleaning, use foaming dispenser with diluted soap. For foam for insulation, cannot make at home safely, need professional spray foam kits with protective gear. So to make simple foam at home for cleaning or kids play, use dish soap, water, and whisk or mixer to create bubbles, or use shaving cream and glue for craft foam, but for industrial foam like mattress or insulation foam, not safe to make at home, purchase pre-made foam from store for safety.