Blac Chyna Loses Endorsement Deal After Six Flags Incident After a video surfaced of Chyna swinging a stroller during a public altercation, Momiie, the company that made the stroller, ended their relationship with Chyna as a brand ambassador. Momiie, to TMZ According to TMZ, Chyna was supposed to eventually create her own line of strollers through Momiie. Following the video going public, Chyna posted on her Instagram story saying that someone had tried to touch one of her kids. Blac Chyna, via Instagram