Maybe Runner x Cayuga? Cayugas are black w/green tint. Cayugas are not small though. They are beautiful ducks.
I adopted ducks from people who "hated" them. They were very nervous of me, to say the least, when I brought them home.
I was (and still am) VERY consistent about the schedule. Quick visit in the morning to make sure they have everything they need, change out water, etc. Always announcing myself, cleaning their enclosure at about the same time everyday, patience and PEAS. I also spent HOURS (and still do, even when I ought to be vacuuming or folding laundry...) sitting with them, talking and singing quietly.
After 4 days they were eating out of my hand. I wouldn't call them cuddly now, but they like my attention - with or without peas in hand - and DEMAND it at certain times of day (11 AM, and 4 & 6 PM). They like me to sit in my spots and watch them while they nibble on my shoes, shirt, etc. The most nervous of them likes to be closest to me all the time but prefers it if the girls take the treats from my hand and drop them on the ground for him. They oblige & I don't mind. He is the one who starts the call for the pea lady/water bearer going first, so I know he likes me.
Good luck, you'll get lots of great advice on this site. This subject seems to be one we have all dealt with on some level or other and everyone was very helpful to me when I brought the ducks home. I am sure you'll get a lot more advice than I can give.
