So you’ve obviously got a computer too; and you like your Mustang…
Look into engine ECU tweaker products and play with your car’s tuning. I don’t know all the current technology products but there may be tuner chips, ways to plug in and hack the factory tune, standalone ECUs, plug-in tuner modules…
All from your handy portable, test drivable laptop!
“Loan” it to an acquaintance who has an immediate need for cash until payday. Like, a single mom who needs a car repair, or a student going back to college.
Even if you know they will never be able to pay it back, you’ll sleep a lot better than if you paid $300 for a night in a fancy hotel.
If you don’t need anything, SAVE IT for when you do need something. Like when you need to repair your car!
Sigh… Can’t you play along?
Besides, did you read the OP? He can’t tell his mom “Screw you for wanting me to have fun. I’m puttin’ it in the bank!”
Sorry… didn’t mean to abandon a thread but real life got in the way for a bit.
Already have a Kitchenaid stand mixer and also a meat grinder attachment so those are out.
Works of art… I’ve actually got a couple of very talented kids who do ceramics.
A Ukulele? I don’t hate my family that much.
I’ve got more tools than I can ever use in a lifetime, including a Dremel and tons of attachments I’ve never used (but I’m sure I’ll need them some day).
A round at the bar sounds good! I just need to find a small bar to get away with it for $300.
Tickets to a game is a good possibility.
The flight jacket sounds really good, but I don’t think I can do it for just $300 (but it would be a good start). Damn… why did you do this to me, I guarantee I’ll have a box coming soon with their logo on it. It doesn’t count as something fun though if it is just something I need to make it through the winter.
I mentioned that I like to dump money into my mustang, so you can count on the fact it has already been tuned… there is a reason it has a Ford Racing plate bracket. I’m a cruiser, but it is a sleeper.
Loaning it to a college student… I’ve got three of my own and I “loan” them way more than that all the time.
Hookers and blow… sounds good to me, but the “Thank You” card to Mom may be awkward.
I’m kind of considering one of these Specialty Appliances: Slow Cookers & More | Crate & Barrel but it would be more for my kids and wife than for me.
What part of the country do you live in? Spend it on an entry fee for a track day, take the Mustang out, learn some basic racecar skills.
If I had $300 to blow it would be on a Go-Pro camera. I really want one, but find it hard to justify the expense for the use I’d get out of it. (Running my non-competitive dog team)
Next choice would be something adventurous like zip-lining or indoor skydiving, or maybe a horseback riding adventure. Fun things, but not in my budget right now.
I need an extra $200 for this fantastic Muppet Show clock:
http://www.bradfordexchange.com/products/119436001_the-muppet-show-cuckoo-clock.html
Frankly I don’t know anyone who couldn’t benefit from one of these in their home as well! 
Now I am picturing a $300 bill going “damn that felt good”…
Good idea!
$300? What’s that, like a hundred cups of coffee?
I’m pretty sure most of my videos would be of me sitting down and working on reports for work… walking out to the mail box… making a sandwich… I’m sure I’ll be a U-Tube celeb in no time. 
That said… don’t think I haven’t considered it… as I said I love gadgets.
If you play guitar I have a Roger Linn Adrenalinn III box I’ll sell ya for $250. 
New updated FX chip and new PSU all complete with manuals and original box. 
Trade the Mustang up towards a Wrangler.
Insert step one-half) test-drive a Wrangler, if you must.
[zoidburg]One art please.[/zb]
Whole lotta disconnect in this utterance. Unless it was a Mustang II (which would then be merely a “lateral move”).
Put the money in the Mustang! Or hookers and beer. I’ll come along to help.
hookers and coke. If you want to be frugal, a fleshlight and marijuana.
I actually like something that is comfortable if I have to drive it for an hour or two (what can I say I’m an old man).
As anyone who has ever “invested” in a car knows you will never get back what you put in. The good news is that my neighbor has a Wrangler and my son and his friends have helped him “invest” in it so we have easy access to it. He also takes my Mustang at times… the best of both worlds.
