I've used potting shells with some success, notably from
Robison Electronics:

http://www.robisonelectronics.com/

They make a variety of shells, for not too much money. Or
check out your local 'craft' store. They often have small
styrene boxes with tight-fitting lids, into which you can
put a variety of things.

You're not *going* to find exactly what you're looking for.
Nearly all commercial-grade products built in any volume use
custom-molded housings, and you'd better set aside at least
$20K for tooling, even in aluminum. Low-volume products use
the off-the-shelf boxes, and they cost around $5-$10 in small
volumes. In high quantities, you can get them down to around
$2, but you can make the same part yourself for $0.40....after
you've paid for the tool.

In general, you need to price things this way:

Electronic parts--component cost total at 1000 piece level.
Assembly labor--1000 unit production build, per unit costs  plus tooling.
Housing, harnesses, labels--1000 unit run costs.

Multiply the sum of these by seven. That's your 'suggested
retail price'. 'Street price' will be about a five. You'll
sell it to the distribution channel at a four.

If you get an absurdly high number for the retail price, you
need to look harder at either the components, the application
or the intended market. If you think you can live on thinner
margins, that's great, but real world experience among many
companies is that if you're selling it for a three or less,
you're not making any money. I've had bosses who wanted to
sell to distribution at a two....they were just delaying the
inevitable spiral into the drain.

If you sell directly to the end-user in high volumes (system
sales for example, that use several thousand units at a
single customer site) then you can get away with a four there
too. That's essentially the same as selling to a distributor.

If you think you'll build it for $15, sell it for $20 because
that's all it's worth to someone, and still make money, forget
it. Document all the details instead, make a run of boards or
whatever is 'custom' about it, and sell the plans/board for $10.
You'll net more cash, and avoid most of the hassle.

Mark G. Forbes, R & D Engineer  |  Acres Gaming, Inc.    (541) 766-2515
KC7LZD                          |  815 NW 9th Street     (541) 753-7524 fax
forbesm@peak.org                |  Corvallis, OR 97330
http://www.peak.org/~forbesm
mforbes@acresgaming.com

"There has been an alarming increase in the number of things I know nothing
about."
---Anomalous