1) I am missing the simple and cheep pickle pot with heating. Find a
used, or buy a cheap new coffee making machine, the filter types.
They have a heating plate and a can with a lid. Put in the can your
pickle and if you need heat for cleaning silver, just turn the coffee
maker on, and the heating plate will heat up the pickle to a maximum
of 70 degrees Celsius. And of course do not rinse the cleaned object
in water, but neutralise it in a washing soda solution, to prevent
your tools to get rusty . Cut out a piece of cardboard from a box,
and lay the neutralised object on it. the cardboard will soak up the
surplus of soda solution.
2) Old inkpots are good for the use of fluoron solution, or other
liquid flux. drill in the cap a hole and stick a small brush trough
this hole and fixate it with a glue gun. (melting sticks) The pot will
not fall over (large base) and no evaporation trough the cap.
3) Other trick is, buy some cellular concrete blocks, 5 cm thick.
The white block in the buiding market where also kind sculptures of.
Cut with an old handsaw pieces of 15x20 cm. They are great for solder
on. The blocks are good heat insulator. You can push nail in it to
hold your object. Also they can be shaped with a knife if you need a
cavitations or else for your object. The are so cheap that if the
block gets dirty you can take new piece. For those who do not know
about these cellular concrete blocks, a link.
Greetings from the Netherlands