- Making a Fireless Cooker
- Using a Fireless Cooker
- The Maendeleo Jiko
- Efficient Use of Firewood
- Making Perfumed Body Oil
- Bottle Top Fish Scaler
- Maize Sheller
- Preserving Mangoes
- A Useful Fly Trap
- Fruit Fly Trap
- How to Make an Effective Rat Trap
- How to Make Your Own Floor Polish
- How to Make Your Own Shoe Polish
- Hand washing bottle
- Chombo Cha “Tippy Tap”
- “Tippy Tap” – English leaflet