In a recent CS project for the Council of the European Union, we had to design a content model for the main content types of the Council web site. During a co-creation workshop, we involved the core team in the design of this content model, to make it a joint effort. Content models however come in different forms and shapes, and designing them can seem daunting at first. By choosing one format/syntax and doing a little warming up exercise with a simple example, the workshop participants were able to come up with a good draft version of the model.