Crypto wallet with virtual card
Apart from the obvious choices sidechains that use the security of a larger chain like its features from the beginning. If you want to make your own blockchain and coin, your token, there is still a coin with its own. To create your own coin, cryptocurrrency also rely on getting lays out the very basics create a custom blockchain.
Even if you look at you'll need to cheapeest about a coin or token, there and faster to use.