I know that there is a lot of weapon suggestions, but I have some ideas and I don't wanna loose them. So, here we go:
Cookery Strike:
You throw a salt shaker (flare), and when it hits the grond, it destroy itself. In this way, it act as an impact weapon. But watch out! Heavy things are falling from the sky!


The pepper is just to make you sneeze and it makes no damage, and the ammount of pepper, rollin pins, forks and pots is random. However, the ammount of objects its always the same, 4. So, there is a random factor, can fall 2 peppers, 1 pot and 1 fork; or 3 pots and 1 rolling pin, etc. The pot is the one that more damage does, followed by the rolling pin. So, pray that don't fall 4 pots.
Magnum:
The best way to solve problems is old school. It makes a damage similar or bit more than shotgun, but its bullet is not the most precise bullet. The image shows a lot of shots to show the error range.


Bubble Gun:
When you dont wanna listen somebody, you just lock him in a bubble. It surrounds the egg, and if he shots, he will hurt himself becouse the bubble detonates the weapon instantly. It last 2 rounds. Here is a recreation.


Explosive shower:
It looks like a normal missile, but after one second, it drops another missile. After a quarter of second, it drops another one, after another quarter drops another one, and in the next quarter, the final drop makes the main missile disapear. This is made to avoid abuses with this weapon. I can't explainit well becouse my language limit, so I made the image to show it in action.


Of course that the total damage caused can't be excessive, so maybe 10 damage per missile would be good. If you hit the targed with the main missile, it won't make much damage, just like all the other spliter weapons.