Actually that is more a general guild thing to make the guild itself more attractive to players. So far seemingly some members dont do much RP and to keep them around or encourage new players we could do more "non RP" stuff like
Hide & Seek: The idea is taken from Augusta Trevorum - they do a weekly hide and seek in cyrodil. One member hides somewhere in cyrodil gives a little hint like "here its raining ash" and the others have to seek him. Whoever finds him first, will get a reward in gold.
This actually can be quite some fun, you get to know the landscape a lot better, find hideouts for PvP and of course its fun to guess who someone could be. Other areas work too ofc. Cyro just offers a huge area.
Lottery is another nice idea taken from Händler Yggdrasils. You can send a PM with your lottery fee (100 gold) to the guy running the lottery and give your tip (2 numbers between 1 and 20 like 12, 15) and and a chosen day (they use saturday 20 PM) they will draw 2 numbers (random generator) the winner takes the jackpot. If there is no winner the money adds to next weeks jackpot etc.