i assume you mean "place in the world, and keep it from moving after that"? VRCFury has a "Toggle" component you can add to the prefab. Make the Toggle be "World Drop". Then have the dildo be attached to your hand, hold it where you like, and activate the toggle. Boom, it'll stay where you dropped it. There IS also the issue of physbones in the dildo going nuts while you move around, the way to fix this is have a movement restraint like the one found in GogoLoco. This would also let you line up the VRC dildo with one IRL without having to worry about accidently nudging the controls and fucking the alignment up.