Small Business Ideas With Big Income, But Little Investment---Any Ideas?

i also love doing tshirts and have found it's much cheaper to sell on sites like creative craving.co.uk and cafepress where you just upload your designs and they print them package them post them etc. I still do personalised onces on the side i don't think you'll make loads of money this way but theres little investment mainly time and its a starting point. Have also just mentioned that i'm umming and ahhing on buying a kit where you personalise chocolate bars (i prefer the design stuff as you can tell) for birthdays, weddings corporate events the kits are expensive but form the research and feedback i've got and the people already doing it that i've spoken to they seem to like the idea and be selling really well. Pm me if you want the website i'mm send it to you.