Excluding three tiles from Optilox, three from Peter Milko, and one from The Final Fantasy Legend, I made all the graphics in Chatterbox DX. (Also some palettes are from other games, but you wouldn't know unless you looked deep into it.)
Yesterday I finished a near-complete list of credits sourcing where I got everything. There were two things I couldn't find because back when I was first making Chatterbox, I was saving assets off of Google Images, and would delete old files after updating the game. But, now you can find the credits for Chatterbox pinned to the top of the community posts. I'm planning to make a credit list for the Newgrounds version soon, as well as ones for Cloudy and Lovebird.