Existing Slots. New and old ideas.

This post is about existing slots and idea about placing (old/new) items into them.

I.Action Slot
1)old (existing) items:
a) hats -- throw up, if you win (random exchange with others, who threw the hat too?);
b) weapon -- if somebody wins you, he takes yours, though he must placed his weapon too;
c) scrap metal(lvl 1) -- drop the ammo-box (only engy?);
d) alien parasite* -- throw it onto the enemy (the same effect as in Alien Swarm); if the enemy dies, then the parasite returns, else - it dies;

2)new...

II.Misc-Slot
1)old (existing) items:
a) hats -- mini-version of the hat is input into the special frame [{icon of the hAt}]
b) weapon - mini-version of the weapon [{icon of the weapon}] warns your enemy that you have a skill with this weapon;
2)new...

/to be continued.../