This small colony was the result of our second pilot. These mice were created by members of the Animal Research Nexus team during a meeting in Bristol (hence Bristol Colony) dedicated to our public engagement programme. While sewing, we shared our vision for the Mouse Exchange and gathered feedback from the team about their experience. We discussed the role of materiality in the Mouse Exchange, what forms of care can be at play, and how the act of making a mouse offers an opportunity to slow down engagement and invite collective sharing. Some of the mice were re-homed to all around the UK.