Halloween Campaign

I'm running a Halloween campaign for my brothers and sisters this weekend. If you want to throw something together, here are the examples of monsters I'm using:

Monster Roster:

Jack-o-Lantern Monster Hit die result 1
Tiny Sized, BAB +0, DEF 4, hp 12
STR 5 DEX15 CON11
Slam 1d3 Bite 1d6
FORT +2 GRAP -10 INIT +2
Special: No Massive damage threshold

Scarecrow Plant Monster Hit die result 3
Medium Sized, BAB +2, DEF 0, hp 15
STR 12 DEX10 CON12
Slam 1d6 Bite 1d3 Claw 1d4 Gore 1d6
FORT +3 GRAP +3 INIT +0
Special: No Massive damage threshold

Scarecrow Plant Monster Hit die result 2
Medium Sized, BAB +1, DEF 0, hp 14
STR 12 DEX10 CON12
Slam 1d6 Bite 1d3 Claw 1d4 Gore 1d6
FORT +3 GRAP +3 INIT +0
Special: No Massive damage threshold

Scarecrow Plant Monster Hit die result 8
Medium Sized, BAB +6/+1, DEF 0, hp 20
STR 12 DEX10 CON12
Slam 1d6 Bite 1d3 Claw 1d4 Gore 1d6
FORT +6 GRAP +3 INIT +0
Special: No Massive damage threshold

Scarecrow Plant Monster Hit die result 5
Medium Sized, BAB +3, DEF 0, hp 17
STR 12 DEX10 CON12
Slam 1d6 Bite 1d3 Claw 1d4 Gore 1d6
FORT +4 GRAP +3 INIT +0
Special: No Massive damage threshold

Great Pumpkin Monster Hit die result 21
Huge Sized, BAB +15/+10/+5, DEF -4, hp 41
STR 28 DEX6 CON20
Slam 2d6 Bite 1d6 Claw 2d4 Gore 2d6
FORT +12 GRAP +22 INIT -2
Special: No Massive damage threshold

The Gardener (Vine Armor) Hit die result 11
Large sized, +8/+3, DEF 2, hp 27
STR 22 DEX8 CON16
Slam 1d4 Bite 1d4 Claw 1d6 Gore 1d8
FORT +7 GRAP +10 INIT -1
Special: Regeneration-attacks below massive damage threshold don't do lasting damage, unless dealt by fire, the hp is regenerated each round. Trample-can run down enemies to do 2d4 damage; heroes can make a Reflex Save (DC 15) to take 1d4 damage instead.

I made this campaign about d20Modern monster hunters, clearing out an overrun town, but you can do whatever you want with this, obviously.

Happy Haunting!