Systems, devices, and methods for molding structures

A modular mold system comprising:

• a first mold device having a first opening defined by a first opening flange and a second opening, opposite the first opening, defined by a second opening flange, the first mold device defining a first structure shape;
• a second mold device having a third opening defined by a third opening flange and a fourth opening, opposite the third opening, defined by a fourth opening flange, the second mold device defining a second structure shape,
• wherein the second mold device is configured to be placed on top of the first mold device such that the third opening is aligned with the first opening, to assemble a first combination mold device defining a first combination structure shape, wherein the first combination mold device is fillable using the fourth opening of the second mold device, and
• wherein the second mold device further is configured to be placed on top of the first mold device such that the fourth opening is aligned with the second opening, to assemble a second combination mold device defining a second combination structure shape, wherein the second combination mold device is fillable using the third opening of the second mold device.

A mold system comprising:

• a first reversible and modular mold device defining a first structure shape;
• and
• a second reversible and modular mold device defining a second structure shape,
• wherein the second reversible and stackable mold device is configured to be stacked on top of the first reversible and stackable mold device in a plurality of combination mold configurations, each combination mold configuration defining a respective combination structure shape comprising the first structure shape and the second structure shape.

A kit for forming structures from molding substances, the kit comprising:

• a first mold section defining a first shape;
• a second mold section defining a second shape;
• the first mold section comprising a first joining component for joining the first mold section to a corresponding second joining component of the second mold section to form a complete mold for containing molding substance to form a structure defined by the first shape and the second shape,
• the complete mold having an opening for filling the complete mold with molding substance,
• the complete mold having an insertion space, between the first mold section and the second mold section, configured for receiving a tool for disassembling the first mold section from the second mold section;
• and
• a securing device for securing the first mold section to the second mold section when the first mold section is joined to the second mold section.