Why not have a browse through this list of SEN themed flipcharts and see what you could use from other teachers? There's a wide variety of topics, from conference material to games, covering a range of ages.
Don't forget, if you've prepared your own flipcharts please do share with other teachers!
We've collated this list of resource packs that could be used with your Special Education Needs lessons to bring an added dimension to your text.
Have a look through these links of external sites to see what you could use in your lessons. There's some great content out there!