(you need an account to see links)
Buy one Sticky Snowball for every 30 minutes (it's the delay). The items is R100, which means 8 points.
(you need an account to see links) (JN Guide)
There are a few ways of doing this. You can get like 4-5 worms and donate them (including the Empty Lantern) or, my personal favorite method:
Keep donating the R101 Empty Lantern. It gives only 1 points, yeah, but you can use any auto-refresh to keep getting the lantern for free (you need an account to see links) and use it together with and auto-donate script (link in the next section). It's probably very risky to do that, but its something to think about, right?
If you are into buying items, you may want to do some math. How to do:
r1-r79 & r101 worth only 1 point. You can use 15np as an value for 1 point. I mean, you are using the script, so why bother if you have 100k items to donate?
Jumping to r90-97 and r98-r100 range, they worth respectively 6 and 8 points each. Which means you will NOT pay more than, respectively, 90np and 120np for each. As the items are now costing more than 1k each in this range, its not even worth it. Just keep hoarding the r101 as long as they don't cost more than X.
(you need an account to see links) gives 4 points. Which means you will not buy it for more than 60np. But.... This may be a good option for you if you have enough NP. You can check the link to see what items are on that range and buy some of them. Just keep those values in mind. I mean, you can indeed pay even 120~150 per items and its still worth it - kinda. Taking 200np as example, the price per point is 33np. So much better than the 125np per point in the R90~100 range....