I had this macbook charger (clone) https://www.amazon.it/gp/product/B082ZYCSF7/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

I used it for my thinkpad and decided to create a custom box.

The file also contains the top cover which simply needs to be inserted.
the fit measurements are tight, so be aware of any tolerances on your printer. I printed it with my P1s and it fits together perfectly.

I used a c7 socket that I recovered from an old power supply and then soldered in place of the European plug.

https://it.aliexpress.com/item/4000836841141.html?src=google&src=google&albch=shopping&acnt=494-037-6276&slnk=&plac=&mtctp=&albbt=Google_7_shopping&albagn=888888&isSmbAutoCall=false&needSmbHouyi=false&albcp=19207365798&albag=&trgt=&crea=it4000836841141&netw=x&device=c&albpg=&albpd=it4000836841141&gad_source=1&gclid=CjwKCAjwrcKxBhBMEiwAIVF8rNzjuh6CfVjWjDErEl1E-De_FHZu7bFQQWB5-kGU7806Kag1V_Q34xoCtEMQAvD_BwE&gclsrc=aw.ds&aff_fcid=8ef28b0ddad74dce9403c9a737947d78-1714471225505-08788-UneMJZVf&aff_fsk=UneMJZVf&aff_platform=aaf&sk=UneMJZVf&aff_trace_key=8ef28b0ddad74dce9403c9a737947d78-1714471225505-08788-UneMJZVf&terminal_id=dfeb9eec545145b0b514d21e272bc0d9&afSmartRedirect=y

-Layer height 0.2
-Walls 2
-Infill 30%