Remote TNT

- price: 1 of something
  stack: "TNT;1;§fRemote TNT"
  properties:
  - name: "RemoteTnt"
    fuse-ticks: 50

specials.remote-tnt.detonator-itemstack is an item you will get when place some block with this property. It uses Simple Inventories stack style (only YAML!) or default Itemstack Serialization

Youtube video

Throwable TNT

- price: 1 of something
  stack: "FIREWORK_ROCKET;1;§fThrowable TNT"
  properties:
  - name: "ThrowableTnt"
    fuse-ticks: 50
    velocity: 5.0

Rideable Projectile

- price: 1 of something
  stack: "ENDER_PEARL;1;§fRideable Ender Pearl"
  properties: "RideableProjectile"

Trampoline

- price: 1 of something
  stack: "HEAVY_WEIGHTED_PRESSURE_PLATE;1§fTrampoline"
  properties:
  - name: "Trampoline"
    y-velocity: 5.5

Vouncher (share levels with players)

- price: 1 of something
  stack: "DANDELION;1;§fVouncher 50 levels"
  properties:
  - name: "Vouncher"
    levels: 50

Portable shop

- price: 1 of something
  stack: "VILLAGER_SPAWN_EGG;1;§fPortable Villager"
  properties:
  - name: "PortableShop"
    shop-file: shop.yml
    use-parent: false
    entity-type: VILLAGER
    enable-custom-name: true
    custom-name: "portable shop"
    baby: false
    duration: 15