Items can be obtained in any of these ways:
- through accelerator/manipulator/separator (4 in each);
- through Tabula Rasa;
- with /spawnitem (admin only).

List of ids for /spawnitem:
wristlightgun
wristplasmastorm
wristflamethrower
wristrifle
wristhowitzer
wristpoisontouch
wristmortar
wristgrenadier
wristburster
wristhomingblaster
wristgristlegun
wristwatchgun

> Note: currently the only non-admin way of obtaining these items is through Tabula Rasa.