Sounds like you want to be very noticeable while wearing your diaper while out in public.
For me, as a U-IC, I am not really into that, but with decades of experience I know a couple of things that I had learned to avoid.
The largest diaper starts with a double or triple nighttime cloth diaper with proper sized plastic pants to cover them. Wearing a tight pair of yoga pants and you will have the pop you are looking for especially the wetter it gets.
Now, doing such a thing comes with public comment that is not going to be positive, plus some members here that do not approve and especially those of us who are IC and have to be out and about everyday in the public. Strongly recommend that you consider backing off a bit and just enjoy wearing and wetting in public and not popping.