I sell my eggs for $1 a piece for Khaki Campbell eggs , $2 for muscovy eggs a piece, $4 for a Khaki duckling, and $5 for a Muscovy Duckling. and $30 for a pair of grown Khaki Breeders. and $45 for full grown Muscovy Breeders. Can't keep them at this price around here!
The nutmeg rouens i would think you could ask a close to regular price for because of they are a "color mutation" of sorts
The bibbed black mallards i'm not sure what you could ask for them because they look so close to the swedish only with a different body type (correct?) and people would feel more obligated to go with a pure birds and often times want birds already recognized by the APA