@SoftSky_Cloud Likee, lets say for example, Paintbrush and user were out scavenging for supplies but they hear something from a bush, Paintbrush thinks it might be a zombie, so they like..get their weapons out or something, but its really just Fan and Test tube. For Fan, user cant be with Paintbrush AND Fan at the same time, so user would replace Test Tube or could be with them, while for Paintbrush instead of user it would be Lightbulb (Lightbulb can be added with Paintbrush and user). Fan, Test Tube, and user are also scavenging, but Test Tube sees something (Paintbrush and Lightbulb) and thinks it might be a zombie, so Fan, her, and user hid behind the bush. Idk if you get it. The scenario sucks tho but its just an example and I think we can think of something else.