There is a project called BITS for on-chain new investments, with a total cost of around $0.6.

First, go to the expansion wallet and search for BitBit.

Then create a wallet and link it to X.

After that, go to recharge here to receive BTC.

Once you receive BTC,

copy this address from the expansion wallet.

Then go to send and paste this address there.

About $2 should be enough.

After receiving it, you can go to the official tweet below and click here.

Then you can make the payment.

$0.03 each time.

You can do this a maximum of 20 times.