Ixworth is not to be confused with Ickyworth [I think you mean Ickworth, Big Ted] - which oddly also has a St Mary's, but "certain people" weren't prepared to walk all that way with me. [The church is a long way from the main gate, Big Ted]
I was able to look around inside here, which was nice as I could only find this sign outside. I had to hang on really tight to get my photo on the font.
The church has lots of flint decorating the walls.