Organizer for 5 tools for Barista Pro. I have model BES878BSS and I don't know if it works for other models, but if you interested, we can try to work it out.

You can put it on the warmer surface. I use it for next 5 tools:

• 53mm Coffee Distributor & Tamper (mine is https://www.amazon.ca/gp/product/B07ZT42HZF/ref)
• 51mm Coffee Tamper (mine is https://www.amazon.ca/gp/product/B07JBLZCYM/ref . Yes, second tamper, I use it to tamp slightly coffee after grinding)
• 54mm Dosing Funnel with Grinder Trigger (I use this one https://www.amazon.ca/gp/product/B096NTW42J/ref)
• Breville Barista Portafilter (original model, which comes with the machine)
• WDT Tool with 4 needles (I have this one https://www.amazon.ca/Espresso-Pavant-Distribution-Professional-Sandalwood/dp/B094NRV5LD/ref , it's important that this tools should have inner threads so you can screw it in-place.)

Note: On preview pictures, on the bottom view example, you can see that I was lazy to dry my portafilter and it leaked and stained part of the organizer.

I printed model with tree supports, but your printer can be capable to print it without supports. 

I used layer height 0.20 and 0.4 nozzle and printed it with Prusament PETG (blue colour is not a great fit for a grey machine :D ).