Our group's end product will be a modification of Darren's mneumonics so that it would be easier to remember.
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Final Mneumonics:
When everyone NAPS on (NaNHKNO)
Coloured Snow Or, Icy Icy Snow (CSOIIS)
A girl places beautiful Handsome glasses, (AgPbHg)
Birds and Cats all Play basketball, (BaCaPb)
No ant Keeps CAkes. (NaKCa)
which also means
NAPS = Soluble NitratesAmmoniumPotassiumSodium
CSOIIS = Chlorine Sulphate Oxi's, Insoluble Insoluble Soluble
=
(Coloured) Chloride - Ag, Pb, Hg - Insoluble (Icy)
(Snow) Sulphate - Ba, Ca, Pb - Insoluble (Icy)
(Or) O/OH - Na, K, Ca - Soluble (Snow)

as pictures are easier to remember than text, we have a picture to illustrate everything in the mneumonics.