Dairy maybe?
Something sweet that starts with D is:datesdoughnutsdouble fudge browniesdevil's food cake
A dog
duck
Denmark
daizy
Something found in the restroom that starts with D is a dryer.
Something sweet that starts with D is:datesdoughnutsdouble fudge browniesdevil's food cake
Detergent
diary
A dog
deer
Dorsal (fin).
· diminutive
dynasty
Drunk
duck
A dishwasher