Tons of building materials in Treasure Isle

[Vanderbilt]

Hi friends
I am currently digging near Pirate Cove and on every dig I get a building (relic) material. My backpack is soon to explode.
My other question is.
When I first started playing I didn't pay much attention to the buildings and deleted most of the plans I had in my backpack. Now I see I can buy some back from the store. Can someone please tell me which ones I should go for? Which relics/buildings benefit me the most? I really have to loosen the load of my backpack, it's dragging me down.

[RyanInt]

I've notice the same thing. I don't have many friends who play TI, so it was ridiculously hard for me to get enough items to build things. Lately, I have seen a welcome increase in the number of relic items you can find while digging.
I would suggest you try for either the Poseidon relic or the Tiki Fire relic. Both give rewards every day. Sometimes it's just a decoration, but often it is fruit or gems, and occasionally even $1 treasure isle cash. The "gift that keeps on giving"

[AZUL]

I noticed that I wasn't getting any cash anymore. *sigh* When/Why did they make this change? Can you tell me if it's posted somewhere? Also, the treasure chest on my Island, I spent 55 of each gem to upgrade my chest because they promised bigger, better prizes, including Island Cash. At first this was true, but lately I get 200-500 gold every day and that's totally useless to me. I would never have wasted gems on that.

[RockOn]

I have sold over 50 of those "packed snow" relics. My backpack is full too! I wish we would get some of the other relics we need in Treasure Isle. What is the packed snow for, anyway? I don't want to dig anymore because I'm afraid I'll get more snow. I've leveled-up several times in the past few weeks and never received any Island Cash for any of them. What do you have to do to get Island Cash?

[Adonis]

I've noticed this increase in drops I think two days ago, while I was on a Pirate Isle.

One thing I CAN confirm (apart from the awesomely increased drop rate of this stuff) is that each zone has their own item drop sets. I noticed that Atlantis drops Diodes, metals, glass, stuff that I assumed were required to build a submarine (which ironically I do not need anymore, because how could I get to underwater Atlantis without a complete submarine?).
Asian isles I think drops Dyes, Fire, Rocks, Glues, Pirate Isles drops Nails, Planks, Ropes (lots, and lots of ropes) and a little bit of Paint, while Mayan isles have Nails, Gears, and planks, if I'm not mistaken.
I am however looking for Shells and Gold, but I could not figure out which zone drops them. Does anyone have any clue where they might drop?

[Wyvern]

Looking for oil as well! Every relic item I get now is those snowballs. And I get them every third dig. I would be nice to get OTHER relic materials, too. And why aren't the 'mistletoe kisses' the 'eggs' and the corals' disappearing out of my backpack when I get enough to open the locked island? They're filling my backpack. I want to sell them but am afraid I'll need them later.