These "Command Strips" are a wall-damage-free hanging product made by 3M. They will allow you to firmly adhere your Track Art to the wall with infinite prepositionability due to the velcro, and easy removal without damaging your wall. Watch this quick video by 3M which shows how the product works
3M Command Picture Hanging Strips are on sale at
Scotch™ Extremely Strong Fasteners
Command Small Adhesive Poster Hanging Strips Value Pack for Small Posters, White, 48-pk
Love your walls with 3M Command Picture Hanging Strips - The Interiors Addict
3M Command Large Black Picture hanging Adhesive strip (Holds)7.2kg, Set of 8
Scotch® Wall-Safe Tape
Command™ Picture Hanging Strips 17206-C, White, Large, 8 Strips Per Pack, 8 Strips Per Pack, 16 lb
Command Ceiling Hooks (3 Hooks, 4 Adhesive Strips) 17008-ES - The Home Depot
Rail – Minecraft Wiki
3M Command - picture hanging strips - Schleiper - Complete online catalogue
3M Command - picture hanging strips - Schleiper - Complete online catalogue
Command Large Replacement Strips, Hobby Lobby