I also removed the velcro and used some 3M Dual Lock.
As far as I remember, there's three different types of dual lock velcro. Can't recall which one I bought, probably the strongest. But trust me, you'll never use 'normal' velcro again after using this stuff.
This isn't the one I bought, but it's pretty much the same. https://www.shorturl.at/afkmH
Feel free to reply with your creations and thanks again
Even though I'm in the UK, I ordered the mini 3 pro skins from Decalgirl, the leg stickers didn't work. So I emailed them, their reply was something like 'Yes, the arm stickers are for the arms'