The jelly is prepared according to the instructions. When it starts to stiffen, carefully attach plastic spiders so that they seem to be sitting on the floor.
For example, worms can be formed from the fruit gum. Pour this into the stiffening mass and stir again to distribute it evenly.
Let the pudding get cold and turn it out. The red sauce is spread around the jelly. You can also take vanilla sauce and color it red with food coloring.