Yes, I have and I can’t really find what I am looking for. What I’ve found is either “layered” colors - where colors don’t mix withing the layer - or multi-part models where the difference colors are separate parts that are then put together.
You can create a simple shape in bambu or simple design software then set the colors via painting tool in bambu. Use the color painting tool. You can make as simple or complex with little effort.
Are you looking for a model or a print ? tshirt prints appear to be becoming popular although ive not seen many if any on makerworld currently , try looking for those designers on facetube / youbook
I am looking for something that I can 3d print. When you say “tshirt prints”, what are you referring to? Is it something that is 3d-printable because that’s not what I think of when I hear “t-shirt prints”?