In 2018, LEGO released 5 BrickHeadz Miscellaneous sets, all of these sets have been retired. For that year, the total price of all retail sets cost $100, today those sets are valued around $409, a growth of 309%.
Most valuable 2018 LEGO BrickHeadz Miscellaneous set
41612 Steve & Creeper $117.54
Largest 2018 LEGO BrickHeadz Miscellaneous set
41611 Marty McFly & Doc Brown 240 pieces
5 sets

41611 Marty McFly & Doc Brown

Theme / Subtheme BrickHeadz / Miscellaneous
Year 2018
Pieces 240
Availability Retired
41611 LEGO BrickHeadz Marty McFly & Doc Brown
Retail $19.99
Value $82.15
Growth  +311.0%
Annual growth 9.8%

41612 Steve & Creeper

Theme / Subtheme BrickHeadz / Miscellaneous
Year 2018
Pieces 160
Availability Retired
41612 LEGO BrickHeadz Steve & Creeper
Retail $19.99
Value $117.54
Growth  +488.0%
Annual growth 14.7%

41614 Owen & Blue

Theme / Subtheme BrickHeadz / Miscellaneous
Year 2018
Pieces 234
Availability Retired
41614 LEGO BrickHeadz Owen & Blue
Retail $19.99
Value $30.75
Growth  +53.8%
Annual growth 5.8%

41622 Peter Venkman & Slimer

Theme / Subtheme BrickHeadz / Miscellaneous
Year 2018
Pieces 228
Availability Retired
41622 LEGO BrickHeadz Peter Venkman & Slimer
Retail $19.99
Value $83.08
Growth  +315.6%
Annual growth 9.3%

41632 Homer Simpson & Krusty the Clown

Theme / Subtheme BrickHeadz / Miscellaneous
Year 2018
Pieces 215
Availability Retired
41632 LEGO BrickHeadz Homer Simpson & Krusty the Clown
Retail $19.99
Value $94.99
Growth  +375.2%
Annual growth 12.1%