We made some Grotmas game rules and filmed it all if you are looking for something a bit different. Merry Grotmas everyone!

Standard chapter approved ‘Supply Drop’ mission  
   
Extra Rules:  
Each Objective in no mans land is a stack of presents  
At the end of each players turn, the player whose turn it is can choose 1 unit for each objective in no mans land they control and it can look through the presents. The present is only useable by the unit that opens it and each present can only be chosen once:  
   
Presents list: roll D20  
1: Box of Squigs – oh no, the squigs attack. Roll 10D6’s every 5+ mortal wounds  
2: Kommandokloth cloaks -  -1 to hit in shooting  
3: Shiny new scopes - +1 to hit shooting  
4: Melta bomb – 1 use in melee replaces melee weapon of 1 model – WS 2+ S10 anti vehicle 2+ D6+2 damage melee attack  
5: Virus grenade – 8” shooting(non vehicle only) – for each model in the unit roll a dice. 4+ model removed from play  
6: da jumpin’ stick – 1 use. Move anywhere on the map 9” from enemy  
7. smoke grenades – pop smoke stratagem benefits but for any unit – 1 time use  
8. combat drugs(one use) – use in movement phase – gains 6” advance, shoot and charge for this turn  
9. Ammo Runt in a Box (one use) – when unit declares shooting attack you can reroll all hits this turn  
10. singing servo skull - +1 leadership roll  
11. Cask of Fungus Beer(one use): +1 wound roll but -1 to hit roll  
12. Painboy’s Gift Set (one use in command phase on unit within 6”): return D3 wounds to non vehicle unit. Can return destroyed models to the battlefield  
13. Grotmas tree(one use) – plant your tree and sticky the objective( use in any phase)  
14. WAAGH horn – Reroll charges for the rest of the game  
15. Da Naughty List – Select a favored enemy – gain reroll hits and wounds against this enemy  
16. Rockit powered sleigh – Gain the ‘fly’ keyword and movement speed 12” – but everytime you ‘fly’ or move more than you base movement roll a D6 – on a 1 it explodes and take D6 mortal wounds. Item can then no longer be used.  
17. Supa mega armour - +1 Armour save but -3” move. Can have a 1+ AS but 1 always fails  
18. Pet squig – in combat deal D3 mortal wounds as an extra attack when your pet squig attacks.  
19.Spannerboys wrench(one use) – return D3 wounds to vehicle within 6”  
20. Da Red Button(auto pressed): What’s this, a big red button, why wouldn’t you push it. A present nearby explodes launching the largest rocket you’ve ever seen into the sky. It explodes scattering molten napalm across the battlefield.  All units on the battlefield take D3 mortal wounds

Grotmas Game Rules