The designer of the hats and gears and faces for ROBLOX is the Admins in Roblox....
No, you cannot get free hats on roblox in any way
ROBLOX (admin account) is currectly the only account that sells hats, but all admins can make hats
ROBLOX himself does, no one else.
If you do not have Builder's Club, the only way to get Robux is to trade tickets in for Robux at the Roblox Exchange. If you do have Builder's club, you can earn Robux by selling cloths and limited edition hats.
ROBLOX. No really, thats his name.
Admins like roblox, builderman, telamon and clockwork.
All hats and faces were designed by the guy himself.
Free stuff, either hats, or building. Building go to toolbox, hats, go to free hats or earn them by winning contests, or win roblox games.
The cheapest hat on Roblox is the Roblox Visor.
It is not possible to upload or trade hats on Roblox. You can make your "hat" into a model and put it on the free models, but you will not be able to wear it on your character. Occasionally the admins will sell a user made re-texture of a hat, but this is rare.
There is currently no way to donate hats on Roblox.