The MC's mother created the crystals, but the costumes, or at least the ones that have appeared, were created by someone else using the work of MC's mother.
Ultra TL;DR guide
The technology of the crystal is known as a "Resonance Jewel" and was made by MC Mother (identity unknown, whereabouts unknown), which captures and amplifies a person's desires/fetishes. The jewel can be re-made endlessly (possibly implying it self-repairs), and once it has 'connected' with a person, that connection cannot be severed
The Libido cloth is a suit made by a dark company known only as "the organisation", its creator is unknown, however, its likely Haibara knows who has made it. It's primary use is to keep perverted housewives under control, however, it also seems to amplify a perverted housewives physical capabilities also; or possess unique tools for them to carry out their fetishes
There is a rival company known as Yuukoku Business Affairs which Kanzaki (Saleswoman) currently works for; They specialize in making weapons that can immobilize any perverted housewife. It should also be noted that this company is a rival company of "The Organisation"
The current known Yuukoku Business weapons are:
The Voltak Claw - Owned by Manager-san
The Fireproof, Waterproof, Bulletproof, Puncture Proof, Poison Proof, Explosive Proof Down Futon (yes it is actually named that ROFL) - Owned by Manager-san (Kanzaki forced him to buy it)
The Voltak Saber - Owned by Manager-san Senior (main character dad)