Your goal is to get the Starite and save it from falling into the lava. You can achieve the task through careful planning before you trigger the trip wire.

Set 1:
Equip a flying hat onto Maxwell.
Use a “rope” to attach to the Starite. Attach the other side of the rope on the right side of the wall. You want to make sure that the distance is long enough so that starite does not fall into the lava. Go through the trip wire to get the Starite.

Set 2:
Equip on flying glove onto Maxwell.
Setup an “immovable table” undernearth the Starite. Consider placing 1~2 to make sure that the starite does not fall into the lava. Go through the trip wire to grab the Starite.

Set 3:
Equip a flying shoe onto Maxwell.
Setup an “immovable floor” under the Starite. Go through the trip wire while the Starite land on the floor.

Scribblenauts Remix 17-9 Cheats Hints gallery:
17-4-1-a: Get the starite, but don’t let the starite fall into the lava!