Dignity is a stablecoin pegged to gold, that was developed by the company Cryptobontix. Each DIG token is pegged to the worth of 0.02445 grams of gold, which was worth exactly $1.00 at the time of the Dignity whitepaper.
Cryptobontix's portfolio of stablecoins are based on a partnership with bullion suppliers. Each individual token acts as a security on a 15-year convertible mortgage. The DIG token is pegged to the value of gold. Every year, 1/15th of the tokens can be redeemed for gold valued at around $1.00.
Cryptobontix does not actually own all of the physical gold. The company plans on spending its profits on acquiring the actual bullion that token holders will have the option of converting.

USDQ is a stablecoin that is pegged to the US Dollar and is collateralized with Bitcoin. USDQ was issued by a company called Platinum Securities that offers STO and market making services.

The JUST token is used as stabilizing mechanism for the JUST network, which is a stablecoin network built on top of the TRON blockchain. TRX token holders can purchase the USDJ stablecoin, which is pegged to the US Dollar through collateralized debt positions. The TRX tokens are held as collateral, and when the user wants to redeem their TRX tokens, they must pay a stability fee using the network's JUST token.