I am looking for a UT shiny Squirtle with a bold nature, and any legit Meloetta.

I can offer the following:
Articuno, Zapdos, Moltres (LG)
Mewtwo (Caught from HG or FEB2012 event)
Mew (FAL2010 event or MYSTRY event)
Shiny Latios (RSE)
Kyorge, Groudon (RSE)
Shiny Rayquaza (RSE)
Jirachi (WISHMKR event)
Darkrai (ALAMOS event, 2012MAY event)
Shiny Spiritomb (DPPt)
DWF Stunky