Unique ideas for a challenge runs?

Hello. I am looking for a two new ideas for my challenge runs. If you have an unique or original or just interesting idea - write it here. Thank you.

...So far I have done:

*No summons.

*No rolling.

*Melee only, no shield.

*Level 1.

*Level 1 + no damage taken.

*Level 8 (Pyromancer starting class).

*No healing, NG+7.

*Calamity Ring, high NG+.

*Bow only, high NG+.

*Shield only, high NG+.

*Bare fists only, high NG+.

*Broken Straight Sword only, high NG+.

*Unupgraded weapon.

*NG+7, no damage taken + various other rules for each boss.

*Magic only on magic-resistant bosses.

...So obviously those things and their combinations are of no interest to me.