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 $322, a growth of 2045%.
Most valuable 2012 LEGO Ninjago Promotional set
4659612 Spinner Ring $189.32
Highest growth 2012 Ninjago Promotional set
850445 Ninjago Character Card Shrine +212.27%
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 $18.18
Annual growth 10.4%

30086 Hidden Sword

Theme / Subtheme Ninjago / Promotional
Year 2012
Pieces / Minifigs 39 / 1
Availability Retired
30086 LEGO Ninjago Hidden Sword
promotional
Value $24.94
Annual growth 11.7%

30087 Car

Theme / Subtheme Ninjago / Promotional
Year 2012
Pieces / Minifigs 27 / 1
Availability Retired
30087 LEGO Ninjago Car
promotional
Value $7.03
Annual growth 8.8%

30088 Rattla

Theme / Subtheme Ninjago / Promotional
Year 2012
Pieces / Minifigs 5 / 1
Availability Retired
30088 LEGO Ninjago Rattla
promotional
Value $27.38
Annual growth 13.2%

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 $46.81
Growth  +212.3%
Annual growth 5.1%

4659612 Spinner Ring

Theme / Subtheme Ninjago / Promotional
Year 2012
Pieces 1
Availability Retired
4659612 LEGO Ninjago Spinner Ring
promotional
Value $189.32
Annual growth 10.3%

4659640 Special Edition Card

Theme / Subtheme Ninjago / Promotional
Year 2012
Pieces 1
Availability Retired
4659640 LEGO Ninjago Special Edition Card
promotional
Value $3.31
Annual growth 8.9%

6012298 Ninjago

Theme / Subtheme Ninjago / Promotional
Year 2012
Pieces 11
Availability Retired
6012298 LEGO Ninjago
promotional
Value $4.54
Annual growth 6.8%