Cannot be ordered on the store. To get one, go to uniswap v3 + get $SACKS from in 0xa6610Ed604047e7B76C1DA288172D15BcdA57596 (all proceeds go to the Gitcoin Grants matching pool)
If you have a $SACKS token, to get a hackey sack:
1. burn it to 0x000000000000000000000000000000000000dead
2. fill out this form: https://forms.gle/M2Cwc9VkhpfmLTs49
3. success!
There will only ever be 250 $SACKS.