3 new LEGO Ninjago 2012 Mini Promotional Polybags sets have been revealed at LEGO.com Instructions Download Page (set names are not yet available). Thanks to forum member Mantisking for the news. (via Brickset)
Like all LEGO polybag mini sets, these should be available in the future at various retailers as seasonal holiday items. For UK, it may be available later on in the Daily Mirror or The Sun Newspaper.