Last year we participated in a trunk and treat at our Church. It was the first time we have been part of it and it was fun. That time we didn't have any idea about what to do with the trunk. We had a skeleton which had a sensor, so it made noises if you came close to it. We put that in our trunk and put some spider web
This time thought of doing something different and this idea came while browsing the net.
So here it is the monster mouth trunk.
Linking this to these awesome parties here, here, here and here.