Glitch dolls are glitch variations of the doll decorations in Pokémon G/S/C.
Procedure
In order to 'own' a particular glitch doll the player may enter either GameShark code 01XX5ED9 to place a doll on the leftmost side of the table, or the code 01XX5FD9 to place a doll on the rightmost side of the table. Below is a table of some of the possible values that the player can use in Pokémon Gold/Silver.