TeX4PPT and TeXpoint. It's much more professional but it is not for free except for a one-month trial.
If you prefer knit clothing over latex, there are five relevant blogs:
3-D Printing Breaks the Glass Barrier - Researchers have cracked the challenge of printing glass through a nozzle. The palette of materials that can be used as 3-D printing “ink” is quickly gro...
4 hours ago