ACME cartoon-style bundle of TNT dynamite. Multicolor or paint for look. For the wick, simple cut a length of filament of choice to the same length as the dynamite. Make an end into a point. Heat with a lighter and then stick it in the hole on the end of the center stick. It will fill in the hole and create a strong bond. You should be able to scale this up. 3D printing settings

Resolution: 0.2mm You can do layer change for the straps and paint the TNT logo. If you have mutli-color printer, you can paint the model appropriately.

Supports: Yes, organic.