I worked on the B-2 Program for many years.
Tons of B-2 stuff to collect, but I stick mostly to flats: stickers, postcards, magazine ads and covers, promos, etc..
One non-flat I've collected is the Matchbox Sky Busters B-2 Bomber.
I have all but one.
2007 MBX Metal M8193-0910
2008 MBX Metal N7599-0910
I NEED THE ABOVE VERSION
2010 Sky Busters Missions V0232
I don't know if there is a 2011 issue.
I've never seen one.
2012 Sky Busters Headquarters W5353-0910
Gold Copper Swirl
I haven't seen an issue after 2012 so I think 2012 was the last, or latest, one.
Makes for a cool little set.
Hung in a row on a wall it looks pretty neat too.