I loved designing custom weapons...
In D&D it started with crossbow fired flasks of oil with impact igniters (had to not ignite on firing and air pressure - model rocket 'missles' taught me that
) and depth charge style deployment harnesses for giant eagle born defenses! Magic targeted gattling style crossbow turrents were another favorite.
For traveller I made various personal nuclear grenades, guided projectile (bullets) and antipersonnel (watch my back) aerial mines
... If I can find my notes (yeah, I probably still have them one of my blasted boxes) I'll post them - I usually had (simplistic) sketches and a writeup for each.
One of my favorite 'sneak' weapons was monofilament wire - great for getting out of jails and inconspicuously slicing up the red tape NPCs!
In D&D it started with crossbow fired flasks of oil with impact igniters (had to not ignite on firing and air pressure - model rocket 'missles' taught me that

For traveller I made various personal nuclear grenades, guided projectile (bullets) and antipersonnel (watch my back) aerial mines

One of my favorite 'sneak' weapons was monofilament wire - great for getting out of jails and inconspicuously slicing up the red tape NPCs!