Very easy.
I tend to use my first 3 earlier in the day and then grab another and anouther throughout the rest of the day.
The easiest one to get in my expiernce is Soarin'. I could get it 3 times in a row if I wanted.
I've also gotten TT, FEA, TOT, RNRC, 7DMT, Space Mountain, EE, Dinosaur etc. Not to mention the even easier ones like Figment, SSE, POTC, JC, HM, IASW etc.
I do not care about NRJ, FOP, or SDD so not sure how difficult they would be.