A crawling hand is a rare drop from Crawling Hands, requiring 5 Slayer to kill. It can be mounted in player-owned houses in the Skill Hall at 38 Construction. This is a one-time use and the corpse cannot be reclaimed.
If players wish to have the crawling hand mounted, it must be taken to the taxidermist in Canifis. She will charge 1,000 coins and take the crawling hand away, giving them a stuffed crawling hand. They can then mount it in their player-owned house using 2 teak planks.