Didn't see any Rocketeer LoRAs ported to Pony, so I'm giving it a go. Trained on official material, various artwork, cosplay and some pics on Blender.
trigger words include "rocketeer helmet", "rocketer helmet_2" (for variations without the fin and modified varieties) and "rocketpack"
This LoRA is done in a way so that the helmet can be generated separately as some Rocketeer models seem to include the leather jacket and pilot pants in there even when not prompted.
Description
First run, may have elements from dataset bleeding in.
Would recommend putting in "nami \(one piece\)" in negative prompts because of the belt.