Which chip do I need to buy? (HID iClass DY)

I just purchased a proxmark3 to play with so I am VERY VERY new to this.

I have a card I want to clone that says “HID iClass DY” and that scans as an iclass/picopass chip with the proxmark.

What am I looking for in a fob that can be disassembled or lose chip (or implant chip) to be able to clone this.

I want to put the chip into my cane (yeah, I’m old :P) so I can mess with my students by waving the cane at the access sensor that pops the door open.

Any guidance or advice would be great.

Thank you all for your time!