I present my peristaltic pump for watering flowers on the balcony based on the engine from the Ford Scorpio ABS pump and a hose 8 mm (inner diameter) / 10 mm (outer diameter).

I printed the pump from PLA because its elements do not come into contact with the pumped medium. The pump should use a soft silicone hose with an outer diameter of 10 mm and an inner diameter of 10 mm. The bearings used in the pump are 625-2Z (5x16x5). I used a 12V electric motor from a Ford Scorpio ABS pump as a drive. However, if you change the rotor and/or flange, you can adapt the pump to any engine/drive - for this purpose, I am attaching a Fusion360 file (I am not a professional designer, so please do not laugh at how I drew it - I am learning).

Here you can see how this pump is working: