May a parent be a sponsor at Confirmation of their son or daughter?

The Rite of Confirmation states, “even parents themselves may present their child for confirmation” (RC #5). However, if a parent does present the child it must be noted that the child has no sponsor. No sponsor is listed in the Confirmation Register. Furthermore, parents only present the child; they do not place their hands on the shoulder during the anointing. This is a ritual gesture of sponsors only. (Communicationes 15 [1983] 189)