In 2012, LEGO released 8 Ninjago Promotional sets, all of these sets have been retired. For that year, the total price of all retail sets cost $15, today those sets are valued around $315, a growth of 1999%.
Most valuable 2012 LEGO Ninjago Promotional set
4659612 Spinner Ring $186.21
Highest growth 2012 Ninjago Promotional set
850445 Ninjago Character Card Shrine +210.34%
Most owned 2012 Ninjago Promotional set
30086 Hidden Sword
8 sets

30085 Jumping Snakes

Theme / Subtheme Ninjago / Promotional
Year 2012
Pieces / Minifigs 42 / 1
Availability Retired
30085 LEGO Ninjago Jumping Snakes
promotional
Value $15.70
Annual growth 9.6%

30086 Hidden Sword

Theme / Subtheme Ninjago / Promotional
Year 2012
Pieces / Minifigs 39 / 1
Availability Retired
30086 LEGO Ninjago Hidden Sword
promotional
Value $24.95
Annual growth 11.6%

30087 Car

Theme / Subtheme Ninjago / Promotional
Year 2012
Pieces / Minifigs 27 / 1
Availability Retired
30087 LEGO Ninjago Car
promotional
Value $6.87
Annual growth 8.8%

30088 Rattla

Theme / Subtheme Ninjago / Promotional
Year 2012
Pieces / Minifigs 5 / 1
Availability Retired
30088 LEGO Ninjago Rattla
promotional
Value $26.55
Annual growth 12.9%

850445 Ninjago Character Card Shrine

Theme / Subtheme Ninjago / Promotional
Year 2012
Pieces / Minifigs 88 / 1
Availability Retired
850445 LEGO Ninjago Character Card Shrine
Retail $14.99
Value $46.52
Growth  +210.3%
Annual growth 5.1%

4659612 Spinner Ring

Theme / Subtheme Ninjago / Promotional
Year 2012
Pieces 1
Availability Retired
4659612 LEGO Ninjago Spinner Ring
promotional
Value $186.21
Annual growth 10.2%

4659640 Special Edition Card

Theme / Subtheme Ninjago / Promotional
Year 2012
Pieces 1
Availability Retired
4659640 LEGO Ninjago Special Edition Card
promotional
Value $3.30
Annual growth 8.9%

6012298 Ninjago

Theme / Subtheme Ninjago / Promotional
Year 2012
Pieces 11
Availability Retired
6012298 LEGO Ninjago
promotional
Value $4.52
Annual growth 6.8%