Which retail strategy did the Imperial War Museum in London pioneer in 2018 that led to a 45% increase in member retention by connecting their loyalty program to the Sherman tank?

Military history museums face unique retail challenges when merchandising historical artifacts and replicas. Their retail strategies must balance educational value, historical accuracy, and commercial appeal. This poll explores how one famous military museum revolutionized its customer loyalty program through an innovative approach tied to one of history's most iconic tanks. Test your knowledge of this intersection between military history and modern retail strategy!

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The 'Tank Tracks' tiered loyalty system where members earned points ('shell credits') for visits, with top tier members gaining exclusive after-hours access to sit inside actual tanks
The 'Armor Up' subscription box program that delivered quarterly replica tank parts that, when collected over 2 years, built a complete 1:32 scale Sherman tank model
The 'Sherman's March' mobile app that used AR technology to let loyalty members view virtual tanks in their home environment before purchasing merchandise
The 'Allied Forces' partnership program where members could exchange loyalty points with other military museums worldwide for discounted tank-themed merchandise