Make your case for creationism WITHOUT alluding to evolution or its principles.
To do creation science you just have to describe how things are chosen in the universe.
0. the logic of how choosing works
1. the start of the universe, and the first decisions
2. decisons in the inanimate world, galaxies etc. if any
3. decisions in the DNA world
4. decisions of organisms
5. decisions of human beings
3 decisions in the the DNA world.
The DNA/RNA system is a world in it's own right, basicly similar to how a 3D computer game is a world in it's own right. Things in the physical universe can be copied to a representation in the DNA world. So the DNA world of an organism may have representations of things in the universe, like the sun and the moon, and other organisms. Some of the environmental representations are used in the life of the organism, other environmental representations guide the choosing of a new representation of an adult organism. The DNA world may also contain a represenation of the organism of the opposite sex etc. but ofcourse most significantly it contains a more detailed representation of the adult organism, which is used for guiding the development of the physical organism to adulthood.
Because of the small size of the DNA world it is easier for things in it to be chosen. The other objects in the DNA world constrain the possible organisms which can be chosen. Also as choosing is to make a future the present, where there is no future, no organism can be chosen. Or so to say, an representation which cannot develop into adulthood, cannot be chosen, because there is no future of it. But this would require some decisionmaking with sophistication.
This theory has scientific merit in many ways. It is basically the only credible theory how an organism can develop into adulthood. It seems inconceivable that an organism can develop into adulthood, without a direct representation of the finished product. And such a representation of the finished product would strongly indicate the existence of a complete world of representations. If one organism can be represented, then it is more parsimonious to say that other things can be represented as well, instead of saying that representations are constricted to only the organism that will develop.
Also this theory explains the enormous percentage of non-coding DNA. It is environmental information, and design guiding information, etc.
As well does this theory explain the appearance of organisms as a coherent integrated whole. It is because they are chosen as a whole in the DNA world.
So you see, creationist theory makes a lot of sense. We should not be surprised, it is only obvious that freedom is real and relevant in the universe.