Most folks breeding Tropical Fish have, at one stage used brineshrimp on a daily basis to rear batches of fry. Each individual has his or her own methods and receptacles for going about this.
The receptacles used can either be from a commercial source or made in the home by the hobbyist.

There here follows a small pictorial piece on how I personally go about making my Brineshrimp hatcheries.
The best receptacle I have found to date for making such a hatchery is a Sainsburys concentrated fruit juice bottle. It has a very long neck, which is ideally suited for funnelling the shrimp out for feeding.

The items I use for making this item are as follows;

An empty Sainsburys High Juice bottle
A small hobby Knife
A marker Pen
Silicone Sealant
A length of airline
An Algarde straight airline connector
An Algarde airline clamp
Drill with a 7mm Bit

First, I need to remove the label and give the bottle a thorough wash.
Then with a pen I mark out a rectangular section of around 75mm x 25mm

With the hobby Knife I now set about cutting this section out and discard the off-cut.

The next job in hand was to drill a 7mm hole in the base of the bottle and the same in the centre of the cap.

An Algarde straight airline connector was then placed through the hole in the cap and sealed into position using everyday aquarium silicone sealant

Once the silicone cured I screwed the cap back onto the bottle and finished off the drain assembly, namely I added a short length of airline to the connector and attached the clamp. A longer length of airline was fed into the bottle all the way down to the neck area, the other end was then attached to the air-pump.

If you are wanting to make a similar unit like this, you now have two choices on how to hang it. You can either drill holes with a pad saw in a shelf and set up the hatchery/s as I have done

Drill a couple of holes, one either side of the bottle's upturned base and thread some string through. You can now hang this from a hook as seen in the smaller prototype version below.

To harvest the shrimp I place a jam pot or similar with a cotton handkerchief draped over the top beneath the drain assembly. I turn off the air supply and let the contents settle. The majority of the newly hatched shrimp will make their way into down into the neck area, where its simply a matter of opening and closing the clamp for the amount of nauplii you require. I then flush this with freshwater and dip the handkerchief into the fry tubs.

I hope you have enjoyed this little pictorial account of how to make a simple brineshrimp hatchery for little or no outlay.
Admittedly the above account is aimed more at the novice fish breeding enthusiast rather than the professional but I hope there is something in it for everyone