Check out the Tools page that features some 80 participatory tools.
Here is a description of the toolbox from ActionAid:
The Reflection-Action Toolbox is an online platform which enable people to connect around how participatory tools and processes are used in practice. The aim is to create a global community of practice and provide an opportunity for M&E practitioners to access range of participatory tools, promote shared learning about added value of these tools, challenges faced, adaptations and innovations made in different contextual realities where applied.
Source: Welcome – Networked Toolbox