My cats love to dig out soil from my flower pots if left unattended for just 1 minute they start digging the hell out of it. I covered all of my pots with stones which made them very heavy and the stones promoted the growth of funghi and mold started to grow on cocofibre soil. I tried to use chicken wire, which was annoying and the cats could get hurt.

Just allign the 2 halves around your flowers stem and push them into the soil. The roots will get hurt, so do it at your own risk or maybe after replanting them and after having covered the top with fresh soil.

The flower guard prints as one piece with a tiny separation gap. Depending on your printers accuracy the two halves might not just snap apart easily.

edit : I uploaded the 2 halves as separate files.