($10-15) What If? Serious Scientific Answers to Absurdly Hypothetical Questions is the bestseller from Randall Munroe, the creator of the XKCD comic. The book is great for its dozens and dozens of interesting (and hilarious) scenarios. The book itself is also wonderfully hardcover.
($5-10) Who knows when cookie ninjas may be needed? Suffice it to say, these cookie cutters will be good enough to equip you with a small army.
($10-15) A new book that takes a somewhat theoretical look at what makes things funny across cultures. The main author actually runs a Humor Lab, so you know you’re in for an academic delight.
($5-10) Sometimes in academia, you need to look the part. And if you’re an absent-minded professor, this could come in handy.
($5-10) What’s funnier than getting to be a lobster while you cook? Maybe a shark, but that’s about it.
($15-20) You could use this fist to hold pens at your desk. Or maybe a small plant. Or a banana. Obviously, this is very versatile. (Plus the wrist is magnetic!)
($10-20) 1950’s pictures with modern hilarious captioned dialogue make this an endless source of good humor.
($15-20) This is an immensely satisfying (if not a bit grim) look at all of the possible calamities that might befall you. And for a graduate student, it’s a great reminder: things could always be worse!