I am to bake a cake for a church event to give thanks for a year of blessing. the cake is for 300 people.. looking for some decorating ideas and how much to charge

please help

If you are wanting to do something simple, just a pair of praying hands with a Bible verse on it would be nice. And it really depends on the size as to what to charge, but I couldn't charge full price, if anything, especially if it's my own church. I know some will say not to worry about that, charge what you would normally charge, but that's just my own concience talking! lol